TW440436B - Method for producing shell of safety helmet - Google Patents

Abstract

A method for producing a safety helmet shell, mainly comprises: preparing a balloon male mold; preparing a prepreg material; wrapping with a release paper and drying by wind; cutting the laminate; adhering a molded material; heating the molded material; and cutting the laminate. Thus, the resin material used for making the safety helmet shell can be greatly reduced. As a result, the thickness of the safety helmet shell can be greatly reduced, while reducing the weight and improving the quality.

Description

44 〇4 3 6 V. Description of the invention (1) The scope of the invention ^ "Scope of the invention" The present invention relates to a method for manufacturing a helmet shell, especially a thin shell, lighter weight, and more uniform The cover cap 疋 achieves impact resistance, improves safety, and reduces the user's head load: L ° shell manufacturing method. < Wen Quan t from the outside "Description of the prior art" The present invention relates to a method for manufacturing a helmet shell with a thinner shell, lighter weight and a knot. " As we all know, the manufacturing of the shell of the conventional helmet is based on the impact resistance of the fiber. The glass fiber is the basic material and the intermediate material (medium), so that the glass fiber is covered on the body of the helmet one by one, and then peeled off. From the following, the manufacture of such a helmet shell, because it uses broken glass fiber as the base material and resin as the intermediate material (medium), has the following disadvantages: '(1) Glass fibers rely on resin to be combined and molded. Therefore, a large amount of resin is required in the process of manufacturing the helmet shell, which results in the manufactured helmet shells having a considerable thickness. (2) In addition to using a large amount of resin, in addition to causing the thickness of the manufactured helmet shell to be large, its weight is also heavy, which is a huge burden on the head of the user. '(3) As it is customary to manufacture the shell of the helmet, the fiberglass layer is manually covered and the resin is used as the medium, so the thickness of the shell of the helmet is difficult to control, the quality is low, and the thinner and lighter shell is required. Lighter and thicker

043 6 V. Description of the invention (2) For the uniform, the quality is more difficult to satisfy. (4) When the outer layer of the helmet shell is manually covered with the glass fiber layer, the inner layer needs to be dried after the inner layer is dried, which is extremely time-consuming, and because it is thick and heavy, aesthetically speaking, More lacking. In view of the above-mentioned shortcomings in the manufacture of the conventional helmet shell, the inventors have studied and improved the shortcomings of these shortcomings, and finally have the invention. "Summary of Invention" Therefore, the present invention aims to provide a method for manufacturing a helmet shell. According to the method for manufacturing a helmet shell according to the present invention, the process of manufacturing a helmet shell does not require a large amount of resin. That is, the thickness of the manufactured helmet shells is not required. As a result of the significant reduction of the helmet shell, the weight of the helmet is also greatly reduced, which can reduce the burden on both heads. According to the manufacturing method of the helmet shell of the present invention, it does not use resin as a medium, so the thickness of the helmet shell is easier to control, and the quality of the helmet can be higher, which can satisfy the high-quality and impact-resistant shell. The need for a thinner, lighter, and uniform helmet is another object of the present invention. According to the manufacturing method of the helmet shell according to the present invention, the helmet shell can be continuously manufactured according to the manufacturing process, so it is more time-saving and labor-saving, that is, a higher-quality helmet can be manufactured with less human soil. A housing, which is yet another object of the present invention. As for the detailed structure, application principle, function and effect of the present invention, then

44 0436 V. Description of the invention (3) A complete understanding can be obtained by referring to the following description made with reference to the drawings. "A Brief Description of the Drawings" Figures: Figure 1 is a block diagram of the manufacturing process of the present invention; Figures 2A and 2B are schematic diagrams of a male balloon model obtained by the first manufacturing step of the present invention; Figure 3 is Schematic diagram of the prepreg material obtained in the second and third manufacturing steps of the invention; Figure 4 is a schematic diagram of the cutting die used in the fourth step of the invention; Figure 5 is a schematic view of the profile obtained in the fourth step of the invention; The figure is a schematic diagram of the prototype of the helmet shell obtained in the fifth step of the present invention; the seventh figure is a diagram of the sixth step embodiment of the present invention; the eighth figure is a schematic diagram of the semi-finished product obtained after the sixth step of the present invention is completed, and the ninth figure It is a schematic diagram of a helmet shell obtained after the manufacturing method of the present invention is completed; FIG. 10 is a diagram of another embodiment of the second step of the present invention. `` Comparison of component names and symbols in the illustration '' 1: Preparation of a male balloon model 1 0: Male balloon model 100: Ballistic cloth tape woven into a cloth 1 0 1, 1 0 2: Roller Π 0: Resin film

"4 〇4 3 6 V. Description of the invention (4) 111: Cutting knife mold 2: Preparation of prepreg material 20 = Prepreg material 21: Glass fiber tape 22: Carbon fiber tape 23: Bulletproof cloth tape 3: Release paper bag Air-drying 31, 3 2: Release paper 4: Cutting 5: Adhesive profile 6: Heat molding 60: Female mold 61, 6 2: Female mold plus 7: Cutting "Detailed description of the preferred embodiment" Part 1 The figure is a program block diagram of the manufacturing method of the present invention. From the figure, it can be clearly seen that the manufacturing method of the helmet shell of the present invention mainly includes the preparation of a male balloon model 1, the preparation of a prepreg material 2, Release paper is covered with air-drying 3, cutting 4, sticking profiles 5, heating molding 6, cutting 7, etc. Please refer to Figures 2A and 2B. The balloon male mold 10 is preferably made of rubber, its shape and size And the shape and size of the outer shell of the helmet to be manufactured are consistent. Therefore, it can be made of rubber material after the design of the helmet shell is completed and a model is made; after the balloon male model 10 is obtained, and

440436

V. Description of the invention (5) 2 blades are formed on it into a plurality of areas 101, 102, 103, ..., the shape of the plurality [is fixed and the size is used to make the cutting die 丨 n ... .. (# 第 4 图) Therefore, to manufacture a helmet shell, the number of cutting blades 111... Used in the production is the same as the areas 101, 102... On the male balloon 10. u · Please refer to Figure 3, the prepreg material 20 is a glass fiber tape 21 with a slight thickness (for example, 〇1 '1 m / m) and nine degrees (for example, ^ ~ 4mm), or a carbon fiber tape 22 2. Kevler 23 After being impregnated with epoxy resin, it is intertwined with a reel or winding machine to become a resin-coated resin fiber cloth. After the prepreg 20 of the resin fiber cloth is obtained, the release papers 31 and 32 are covered on both sides of the entire sheet and air-dried (step 3). The pre-impregnated material that has been covered with release paper 31, 3 2 and air-dried 'is the above-mentioned 2, and the broken knife mold 1 11 ....' cut into a variety of steps with the shape of the balloon on the male mold The profiles 41, 42 ... (as shown in Figure 5), this is the profile obtained in the fourth step M ^, the two sides of which are release paper, the middle is prepreg Chiang 2 The paper is torn off, that is, because of the effect of the resin of the prepreg material, the $ can be attached to the balloon male mold 10, and when the profile is attached to the balloon male mold 10, one can get the prototype of the helmet shell (see (Figure 6), and the 5th step of pasting the profile 40 is completed. π μ ί After sticking the profile 5 on the ball male mold 10, the next addition and molding step can be performed. Li Ji j «Zhe, ^ 彳 ％ 力 乂 1〇ψ It is as shown in Figure 7 and will be pasted. The profile-attached balloon male model is ^ in the female mold 60 on the ™ molding machine. The shape and size of the female mold 60 are the same as but slightly larger than the: A mold 10, making the male balloon 1 0 and the female mold 60 Some between

Page 8 44 043 6 V. Description of the invention C6)

For a gap, when the balloon male model 10 is placed within the female model 60, the high-pressure gas is first introduced into the balloon eight molds 10 to make the balloon male model 10 rise, and at the same time the The air is drawn out, and the profiles 40 attached to it are adhered to the gas-damaged eight molds 10 and the molding mother mold 60, respectively. Then use the heaters A 6 1 and 6 2 outside the master mold to heat-mold to melt the resin and flow between the air male mold 10 and the female mold 60 to make it smooth. Hard hat shell. The temperature at which the molding is performed is the temperature at which the resin can be cured (for example, 12 ~ 18o printed "," " aj ~ 〇 After heating and molding, first take out the balloon male mold 1 〇 'and then open the female mold 6 〇, g can get no The semi-finished product of the helmet shell with holes such as the eyeglasses (as shown in Figure 8P). (As shown in the figure). In the second step of the present invention, as shown in FIG. The resin is squeezed so that the resin film u can be coated on the cloth to obtain the prepreg material of the resin film. The amount of resin in the helmet shell obtained by the manufacturing method can be doubled to the optimal state , The helmet shell has a high degree of shock absorption, which can greatly reduce the load on people ’s heads as a result of reducing the weight, and the helmet ’s light weight, thin shell, and quality Degree = effectiveness can indeed improve habitual manufacturing The resulting thick shell helmet law male F1 #, reset heavier, the low impact absorption disadvantages, and its use is not reflected and, bonded to the provisions of the patent law, thanks to urge prospective patent, in fact, Germany

4 4 04 3 6

Page ίο

Claims (1)

"Β 私 备 I 正 少 ^ m ______ 6. Scope of patent application 1. A method for manufacturing a helmet shell, the steps include: The preparation of a male balloon model: the male balloon model is made of rubber, its shape, size, and The shape and size of the shell of the helmet to be manufactured are the same. After it is formed, it is divided into a plurality of areas, and a cutting die is made according to the shape and size of the plurality of areas. The preparation steps of the prepreg material are: slightly thick (Such as 0 0 i ~ O.lm / m) and width (such as 1 ~ 4mm) of glass fiber tape, or carbon fiber tape, bulletproof cloth tape (kevier) ' The machine is intertwined to form a resin-coated resin fiber cloth. Release paper is covered with air-drying step: the surface of the resin fiber cloth obtained in the previous step is' coated with release paper and air-dried. Cutting step: the paper is coated with release paper and air-dried The prepreg material is cut into a profile having the same shape and size as the area on the male balloon mold; the step of pasting the profile: attaching the cut profile on the aforementioned balloon male mold according to the shape of the partition; the heating molding step: It is to place the male model of the balloon with the attached profile into a female model on a molding machine, so that there is a slight gap between the male model of the balloon and the female model; when the male model of the balloon is placed in the female model, the male model of the balloon is first Introduce high-pressure gas to raise the balloon male mold, and at the same time draw out the air between the male mold and the female mold, so that the attached profiles are matched with the balloon male mold and the molding female mold, respectively; The heater is heated and formed to obtain a helmet shell. Processing steps: the finished helmet shell is processed into a finished product; , Λ scope of patent application At this point, the shell of the manufactured helmet has a large resin bulk thickness, and the number of fine materials can be greatly reduced, and the weight of the material can be greatly reduced, and the quality can be greatly reduced. 2. If the helmet shell described in item i of the scope of patent application is made for it. Method, wherein, in the preparation step of the prepreg material, a glass fiber belt or a carbon fiber belt and / or a bullet-proof cloth belt must be woven into a cloth, and then the resin is extruded by a roller to cover the cloth with the resin film to make the cloth. Resin-coated resin fiber cloth. Page 13