TWI846151B - Bulletproof helmet and its cutting and laying forming method - Google Patents

Abstract

A bulletproof helmet comprises: at least three layers of fiber fabric and includes at least one fiber fabric outer layer, at least one fiber fabric middle layer, and at least one fiber fabric inner layer cut into a sheet-shaped body with an arc angle; the cutting arc angle of the fiber fabric outer layer, the fiber fabric middle layer, and the fiber fabric inner layer of the fiber fabric is 18.4-58.8 degrees; the fiber fabric of the fiber fabric is The fiber fabric outer layer, the fiber fabric middle layer and the fiber fabric inner layer are stacked on each other at an interval rotation angle of 15 to 30 degrees or greater than 30 degrees; the fiber fabric outer layer, the fiber fabric middle layer and the fiber fabric inner layer of the fiber fabric are in the shape of a lucky clover or a petal shape, and the fiber fabric is placed in a helmet mold for hot pressing and cold pressing.

Description

Bulletproof helmet and its cutting and laying forming method

The present invention relates to a helmet and method, in particular to a bulletproof helmet with fast manufacturing process, reduced wrinkles, improved uniform strength and complete structure, and its cutting and laying molding method.

The structure of the conventional bulletproof helmet is composed of multiple sheets of resin or fiber in a square or circular leaf shape, and laid at zero and ninety degrees. The conventional use of multiple sheets of resin or fiber laid at zero and ninety degrees not only increases the weight, but also causes heat pressing stress and uneven stacking, which will produce wrinkles during pressing and seriously affect the quality and integrity. In addition, the overlapping state of the square or circular leaf shape of the conventional helmet cannot be accurately controlled, which greatly reduces its practicality. This is the point that technicians and consumers in this field are eager to break through.

In order to solve the above-mentioned shortcomings of the existing technology, the main purpose of the present invention is to provide a bulletproof helmet and its cutting and laying forming method, which uses multi-layer fiber fabrics to cut into a sheet-shaped body with a circular arc angle to reduce weight and improve material utilization. The cutting arc angle is cut between 18.4 and 58.8 degrees, so that the hot pressing force and stacking are uniform.

The second purpose of the present invention is to provide a bulletproof helmet and its cutting and laying forming method, by stacking the multi-layer fiber fabric at different interval angles, to improve the uniformity of the structural strength and reduce wrinkles, thereby improving integrity and production efficiency.

The problem that the present invention aims to solve is that the structure of the bulletproof helmet used in daily life and its cutting and laying are composed of multiple sheets of resin or fiber in a square or circular leaf shape and laid at zero and ninety degrees rotation. The multiple sheets of resin or fiber laid in a conventional shape and rotation not only increase the weight, but also cause the hot pressing stress and uneven stacking, which will produce wrinkles during pressing and seriously affect the quality and integrity. In addition, the overlapping state of the square or circular leaf shape of the daily necessities cannot be accurately controlled, which greatly reduces its practicality.

Technical means for solving the problem. To achieve the above-mentioned purpose, the present invention provides a bulletproof helmet, which is characterized in that the bulletproof helmet includes: at least three layers of fiber fabric and includes: at least one fiber fabric outer layer, which is a shaped sheet body cut with a circular arc angle; at least one fiber fabric middle layer, which is a shaped sheet body cut with a circular arc angle, and the fiber fabric middle layer is stacked at an interval rotation angle at the lower end of the fiber fabric outer layer; at least one fiber fabric inner layer, which is a shaped sheet body cut with a circular arc angle, and the fiber fabric inner layer is stacked at an interval rotation angle at the lower end of the fiber fabric middle layer; the fiber fabric is placed in a helmet mold for hot pressing and cold pressing.

Among them, the fiber fabric of the present invention is a ballistic fiber fabric or a non-ballistic fiber fabric.

Among them, the cutting arc angles of the outer layer of the fiber fabric, the middle layer of the fiber fabric, and the inner layer of the fiber fabric of the present invention are 18.4 to 58.8 degrees.

Among them, the fiber fabric outer layer, the fiber fabric middle layer and the fiber fabric inner layer of the fiber fabric of the present invention are stacked on each other at an interval rotation angle of 15 to 30 degrees or greater than 30 degrees.

Among them, the fiber fabric outer layer, the fiber fabric middle layer and the fiber fabric inner layer of the fiber fabric of the present invention have a sheet-shaped body in the shape of a lucky clover or a petal shape.

Technical means for solving the problem, in order to achieve the above-mentioned purpose, the present invention provides a method for cutting and laying a bulletproof helmet, the steps of which include: (A) cutting a fiber fabric into a shape; the fiber fabric comprises at least one fiber fabric outer layer, at least one fiber fabric middle layer, and at least one fiber fabric inner layer; the fiber fabric cutting shape is a lucky grass shape or a petal shape with a rounded corner, and The arc angle is between 18.4 and 58.8 degrees; (B) Multiple layers of the fiber fabric are stacked at different intervals and rotation angles: the fiber fabric is cut and the outer layer, the middle layer, and the inner layer are stacked at different intervals and rotation angles, and the interval rotation angle is 15 to 30 degrees or greater than 30 degrees; (C) Use a positioning plate or a clamp: stack multiple layers of the fiber fabric The fiber fabric including the outer layer, the middle layer and the inner layer is fixed by a positioning plate or a clamp and placed inside the helmet mold; (D) hot pressing molding: the fiber fabric placed inside the helmet module is set to a hot pressing mold temperature of 120-130°C and a pressure of 150-200kg/cm2, and the pressure is maintained for 8-15 minutes. (min); (E) cold press shaping: after the hot press time is over, cold press shaping is carried out with the temperature dropping to 60℃, the pressure 150~200kg/cm2, and the pressure holding time 20~30 minutes (min) to form a bare helmet; (F) take out the bare helmet and trim the edges; (G) glue the rubber ring; (H) coat the surface; (I) install accessories to make a bulletproof helmet.

Among them, the fiber fabric of the present invention is a ballistic fiber fabric or a non-ballistic fiber fabric.

Compared with the effects of the prior art, the bulletproof helmet of the present invention comprises: the fiber fabric includes the outer layer of the fiber fabric cut into a sheet-shaped body with a rounded corner, the middle layer of the fiber fabric, and the inner layer of the fiber fabric, and the fiber fabric is placed in a helmet mold for hot pressing and cold pressing; the bulletproof helmet cutting and laying molding method, the steps of which include: cutting the fiber fabric into shape; stacking the multiple layers of fiber fabric at different intervals and rotating angles, using a positioning plate or a clamp, performing hot pressing molding, performing cold pressing molding, The bare helmet is removed, trimmed, rubber rings are glued, the surface is coated, and accessories are installed to make a bulletproof helmet; further, multiple layers of fiber fabric are cut into sheets with arc angles to reduce weight and improve material utilization. The arc angle of the cutting makes the heat pressing force and stacking uniform. By stacking the multiple layers of fiber fabric at different intervals, the structural strength is improved and wrinkles are reduced; the integrity and production efficiency are effectively improved, which will greatly expand the industry's utilization and be innovative and progressive.

1:Bulletproof helmet

11: Fiber fabrics

111: Fiber fabric outer layer

112: Fiber fabric middle layer

113: Fiber fabric inner layer

S1: Fiber fabric cutting shape

S2: Multiple layers of the fiber fabric are stacked at different rotation angles.

S3: Use a positioning plate or clamp

S4: Perform hot pressing molding

S5: Cold pressing and shaping

S6: Take out the bare helmet and trim the edges

S7: Glue the rubber ring

S8: Surface coating

S9: Attach accessories to make a bulletproof helmet

Figure 1: A three-dimensional exploded view of the fiber fabric of the bulletproof helmet of the present invention.

The second figure is a three-dimensional diagram of the combination of the bulletproof helmet and its bare helmet of the present invention.

Figure 3: is a flow chart of the method for cutting and laying out the bulletproof helmet of the present invention.

The present invention is described in detail as follows with the accompanying drawings and in the form of an embodiment. The drawings used in the text are only for illustration and auxiliary description purposes, and may not be the actual proportions and precise configurations of the present invention after implementation. Therefore, the proportions and configurations of the attached drawings should not be used to limit the scope of the patent of the present invention in actual implementation.

Please refer to the first and second figures, which are the three-dimensional exploded view of the fiber fabric of the bulletproof helmet of the present invention and the three-dimensional assembled view of the bare helmet of the bulletproof helmet of the present invention. In a preferred embodiment of the bulletproof helmet of the present invention, the bulletproof helmet 1 includes: at least three layers of fiber fabric 11. The fiber fabric is bulletproof fiber fabric or non-bulletproof fiber fabric and includes: at least one fiber fabric outer layer 111, at least one fiber fabric middle layer 112, and at least one fiber fabric inner layer 113.

The aforementioned at least one fiber fabric outer layer 111 is cut into a sheet-shaped body with a circular arc angle, and the cutting circular arc angle of the fiber fabric outer layer 111 is 18.4~58.8 degrees.

The at least one fiber fabric middle layer 112 is cut into a sheet-shaped body with a circular arc angle. The fiber fabric middle layer 112 is stacked at an interval rotation angle at the lower end of the fiber fabric outer layer 111. The cutting circular arc angle of the fiber fabric middle layer 112 is 18.4~58.8 degrees.

The at least one fiber fabric inner layer 113 is a sheet-shaped body cut with a circular arc angle. The fiber fabric inner layer 113 is stacked at an interval rotation angle at the lower end of the fiber fabric middle layer 112. The cutting circular arc angle of the fiber fabric inner layer 113 is 18.4~58.8 degrees. The fiber fabric 11 is placed in a helmet mold for hot pressing and cold pressing.

The fiber fabric outer layer 111, the fiber fabric middle layer 112 and the fiber fabric inner layer 113 of the fiber fabric 11 of the present invention are stacked with each other at an interval rotation angle of 15 to 30 degrees or greater than 30 degrees; the fiber fabric outer layer 111, the fiber fabric middle layer 112 and the fiber fabric inner layer 113 of the fiber fabric 11 of the present invention are in the shape of a lucky clover or a petal shape.

Please refer to the third figure, which is a flow chart of the bulletproof helmet cutting and laying molding method of the present invention. In a preferred embodiment, the bulletproof helmet cutting and laying molding method of the present invention includes the following steps:

(A) Fiber fabric cutting shape S1; the fiber fabric 11 includes at least one fiber fabric outer layer 111, at least one fiber fabric middle layer 112, and at least one fiber fabric inner layer 113; the fiber fabric 11 is cut into a lucky clover shape or a petal shape with a circular arc angle. The fiber fabric 11 is cut into a lucky clover shape or a petal shape to reduce weight, and the circular arc angle is between 18.4 and 58.8 degrees, so that the heat pressure stress and stacking are uniform.

(B) Multiple layers of the fiber fabric are stacked at different rotation angles S2: The fiber fabric 11 is cut and includes the fiber fabric outer layer 111, the fiber fabric middle layer 112, and the fiber fabric inner layer 113, which are stacked at different rotation angles, and the rotation angles are 15 to 30 degrees or greater than 30 degrees; the stacking is performed at an interval rotation angle of 15 to 30 degrees or greater than 30 degrees to improve the uniformity of the stacking.

(C) Using a positioning plate or a clamp S3: The fiber fabric 11 including the fiber fabric outer layer 111, the fiber fabric middle layer 112, and the fiber fabric inner layer 113 is fixed by a positioning plate or a clamp and placed inside the helmet mold.

(D) Perform hot pressing molding S4: Set the hot pressing mold temperature of the fiber fabric 11 placed in the multiple layers inside the helmet module to 120-130°C, the pressure to 150-200kg/cm2, and the continuous pressure holding time to 8-15 minutes (min).

(E) Cold pressing S5: After the hot pressing time is over, cold pressing is performed with the temperature dropping to 60°C, the pressure 150~200kg/cm2, and the holding time 20~30 minutes (min) to form a bare helmet;

(F) Take out the bare helmet and trim the edges S6.

(G) Glue the rubber ring S7.

(H), surface coating S8.

(I) Install accessories to make a bulletproof helmet S9.

The bulletproof helmet 1 of the present invention comprises: at least three layers of fiber fabric 11 and includes the fiber fabric outer layer 111, the fiber fabric middle layer 112, and the fiber fabric inner layer 113 cut into a rounded corner. The fiber fabric 11 is placed in a helmet mold for hot pressing and cold pressing. The bulletproof helmet cutting and laying molding method comprises the following steps: cutting the fiber fabric into a shape S1; stacking the multiple layers of fiber fabric at different intervals and rotating angles S2; using a positioning plate or a clamp S3; performing hot pressing S4; performing cold pressing S5. 5. The bare helmet is removed and trimmed S6, the rubber ring is glued S7, the surface is coated S8, and the accessories are installed to make a bulletproof helmet S9; further, the multi-layer fiber cloth 11 is cut into a sheet-shaped body with a rounded corner to reduce weight and improve material utilization. The cutting arc angle makes the heat pressing force and stacking uniform. The multi-layer helmet fiber cloth 11 is stacked at different intervals to improve the uniformity of the structural strength and reduce wrinkles; effectively improve its integrity and production efficiency, which will greatly expand the industry's utilization and be novel and progressive.

From the above, we can see that this invention has indeed achieved the desired improved effect by breaking through the previous technical structure, and it is not easy for people familiar with the technology to think of. Moreover, this invention has not been disclosed before the application. Its progressiveness and practicality obviously meet the application requirements for invention patents. Therefore, we have filed an invention application in accordance with the law and sincerely request your approval of this invention patent application to encourage people to invent. I am grateful for your kindness.

The embodiments described above are only for illustrating the technical ideas and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They cannot be used to limit the patent scope of the present invention. In other words, any equivalent changes or modifications made according to the spirit disclosed by the present invention should still be covered by the patent scope of the present invention.

1:Bulletproof helmet

11: Fiber fabrics

111: Fiber fabric outer layer

112: Fiber fabric middle layer

113: Fiber fabric inner layer

Claims (2)

A method for cutting and laying a bulletproof helmet comprises the following steps: (A) cutting a fiber fabric into a shape; the fiber fabric comprises at least one fiber fabric outer layer, at least one fiber fabric middle layer, and at least one fiber fabric inner layer; the fiber fabric cutting shape is a lucky clover shape or a petal shape with a circular arc angle, and the circular arc angle is between 18.4 and 58.8 degrees. (B) stacking multiple layers of the fiber fabric at different intervals and rotation angles: cutting the fiber fabric and stacking the fiber fabric outer layer, the fiber fabric middle layer, and the fiber fabric inner layer at different intervals and rotation angles, wherein the interval rotation angle is 15 to 30 degrees or greater than 30 degrees; (C) using a positioning plate or a clamp: stacking multiple layers including the fiber fabric outer layer, the fiber fabric middle layer, and the fiber fabric inner layer at different intervals and rotation angles. The fiber fabric of the middle layer and the inner layer of the fiber fabric is fixed by a positioning plate or a clamp and placed inside the helmet mold; (D) hot pressing molding: the fiber fabric placed inside the helmet module is set to a hot pressing mold temperature of 120-130°C, a pressure of 150-200kg/cm2, and a continuous pressure holding time of 8-15 minutes (min) ; (E) Cold pressing: After the hot pressing time is over, cold pressing is performed with the temperature dropping to 60℃, the pressure 150~200kg/cm2, and the holding time 20~30 minutes (min) to form a bare helmet; (F) Take out the bare helmet and trim it; (G) Glue the rubber ring; (H) Apply coating on the surface; (I) Install accessories to make a bulletproof helmet. As described in item 6 of the patent application scope, the method for cutting and laying out a bulletproof helmet, wherein the fiber fabric is a bulletproof fiber fabric or a non-bulletproof fiber fabric.

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