TWI224801B - Slim and hard press-button manufacture method and the products - Google Patents

Abstract

The present invention relates to a press-button manufacture method and the products (part 2), and more particularly to a flexible membrane layer make of a flexible plastic material, where can print some words or pictures layer. And then, we locate the flexible membrane layer which is printed words or pictures in an allowing ventilation mold, and then put the flexible material on the mold to make the product. The flexible membrane layer is stick with a flexible, high heatable, and allowing ventilation material, even the flexible membrane layer is an easy made and flexible material. So with the flexible material characteristic, it can directly be a flexible layer on the words or pictures layer. And it can not only decrease the process to make the press-button, but also a well flexible and good touchable press-button.

Description

1224801 V. Description of the invention (l) [I. Technical Field of the Invention] The present invention belongs to the manufacturing of hard keys, not to mention a manufacturing process that can make thin hard keys Γ, inch [II, prior technology 】 Use ^ 目 『I: Use a mobile phone, home phone or computer, etc .; : The structure can be roughly divided into "soft keys" and "hard as · :, hard keys are widely used in home phones, quality: a kind of key ^" m key semi-finished product made by "hard key group forming method" cutting and separation " After making a few single $ 主 #: "the original body is called the rubber body), press each of them into a button and press _ (hereinafter abbreviated, and then print it on the mold under the assembly machine-after the F pattern) The "Cotonian thin positioning piece" is coated on the edge and adhered to the rubber body, and it is 22, 1, and one. Because of using this conventional hard key forming method, soil :: The "positioning piece" of the whole key It must be glued to the button formed by the rubber body. The thickness of the body during molding must be kept at a certain size. Therefore, the rubbers are smoothly bonded, and because the rubber body itself must be within, otherwise it will not be possible. Second: Only the cost of the material is higher when molding, and at the same time, the thickness is relatively large due to the second binding degree, which forms the key of the home phone. One of the overall necks of the product. Therefore, based on manufacturing experience, the inventor Processing ^ related to the research and development of the industry, and actively based on the aforementioned needs, the in-depth discussion of the lack of research, so you & 丄 ^ ~, husband 1 ^ is too long 1224801 1224801

5. Description of the invention (2) Process and its finished product ", in order to improve the above-mentioned shortcomings. [III. Summary of the invention] The main purpose of the present invention is to provide ... the manufacturing process of thin hard keys and their finished products ", which is to change the composition structure of the key molding, so that the thickness of the agricultural body can be reduced during the molding to reduce the material cost. , Press the two-shaped shape. The reason for drinking: to achieve the above-mentioned functions and purposes, the present invention "thin hard key spring product", the production process includes: "film forming", "thin, lp!" Into the mold "," molding "," Key sheet; grease (TPU) "#Elastoplastic material made of elastic thin two ::! Text and pattern I are printed on the elastic film layer, and then there will be 丄 有 屮! kind! The elastic film layer is placed and positioned in the mold group :, Licheng = or compression molding, and a spring body layer is directly formed on the thin mold layer because the elastic film spreads well. Μ _ p 2浔 The film layer is attached to a high temperature resistant and breathable. ^ &Quot; 5 The elastic film layer itself has good elastoplasticity and is thin. Then, when the elastomer layer is combined, control the thickness of the rubber layer. : Adhesive processing is applied to the elastic film layer, and the thinner buttons with overall thickness and thinner thickness are made by the adhesive-right II and the second t. The best embodiment and the effect of the second scheme are as follows: “It ’s easy to compare, and later, I believe that the above objective structure of this creation = and the deduction” can be obtained in depth and has [four, implementation]. So that they can further understand the structural design and technology of the present invention,

Page 91224801 V. Description of the invention (3) · Re-explained in conjunction with the drawings: Please refer to Figures 2 to 3, the present invention "the process of thin hard keys and its finished products", the production process includes : (A) Film molding: using thermoplastic polyurethane (TPU) and other materials with elasto-plasticity as raw materials, an elastic film layer of appropriate thickness (10) (B) elastic film layer (1 〇) ) Printing: printing and forming the required characters, graphics or symbols on the elastic film layer (10) to form a text and pattern layer (20). It should be further explained that the elastic film layer (10) Before printing, in order to make the printing operation of the text and pattern layer (20) more accurate, a peelable release layer (30) may be provided on the opposite side of the opposite surface to be printed, and the separation The release layer (30) is a release paper that can be easily peeled off. (C) Insertion into the mold: After the release layer (30) on the elastic film layer (10) is peeled off, it is set and positioned in a mold group (40), which has A male mold (41) and a female mold (42) 'wherein the plastic mold side of the male mold (4 1) is provided with a leg mold cavity (411) for molding the leg (6 1), and the mother mold On the molding side of (42), a button cavity (4 _ 2 1) is formed corresponding to the “key convex shape”, and the mold material for forming the button cavity (4 2 1) is a tool. Ten high temperature and good air permeability. (D) Molding: The method of "injection molding" or "compression molding" is used to directly form a plurality of protruding elastomer layers (50) on the elastic film layer (10). ^

1224801 V. Description of the invention (4) What needs to be explained in addition is that, as shown in Figure 4, if the elastomer layer (50) is completed by injection molding, the mold side of the male mold (4) is on the molding side. A plurality of injection holes (4 1 2) are provided continuously, so that rubber or thermoplastic polyurethane (TPU) raw materials are injected into the key cavity (4 1 1) through the injection holes (4 1 2) by means of injection. ), Because the elastic film layer (10) itself has good elasticity and plasticity, and the rubber material has a pressure when injected, it can directly form the bio-layer (50) in a concave and convex configuration, and because of the elasticity Forming the body layer (50): The person who has the elastic thin mold layer (10), at the same time, the keys are directly formed into a two-row configuration, so when the mold is formed, it can enter a convex row.

) Thickness, thinness. The adhesive layer (50 key sheet is bonded to the type with the elastomer layer (the surface is coated with mildew sheet (70)) and the adhesive works, if the elastic system is first laid on the facing mother mold (elastic material directly molding the elastic material) : When the bomber works after 50), it can be a transparent industry. (The heat-heating film layer of the mold can be closed. (1) It can be made, such as molding. ”An elastic material is used, and then the company is pressurized. Adding the elastomer layer requires additional materials such as blocks (E) 0) the other), the key engineering plastic, when the completion of the button, the block (5 1) mold (4 1) thermal method makes the (50), It is explained that the feeder (the elastic film layer 4 2) in the direction of the block (5 1) is attached to the elastic thin material block (5 1 the flexible film layer), and then the bomb is used to combine an or non-transparent application adhesive

1 0) sex film key sheet acrylic or other,

Page 111224801 V. Description of the invention (5) When the adhesive finish type is completed, the hard keys that can directly control the concave and convex shape of (F) into (50) can bear the above, 10) in the printed text and pattern layer If it is transparent, and if the color of the text brush is to summarize the above application. When the product and the box are molded and the joint structure is formed, it is necessary to further say that when the text and pattern (20) are light, the pattern layer (the description of the opaque color, the industry, it should be explained that if the key sheet (70) It is transparent to form characters and patterns on one of its outer edges. The processing procedure described uses the characteristics of the thickness of the elastomer layer on the elastic thin mold layer (100) to make it thin and bright. The elastic film layer of the present invention (the layer (20) can be determined in advance as a light-transmitting or opaque structure, and the printing color material is set to the light-transmitting color system 20) When it is opaque, it is printed. The invention is indeed patentable, according to law

Page 12 1224801 Brief description of the drawings [Simplified description of the drawings] Figure 1: This is a finished button diagram made by conventional manufacturing methods. FIG. 2 is a flow chart of the method and process of the present invention. Fig. 3: Schematic cross-sectional view of the molding process of the present invention. Figure 4: This is a sectional view of the manufacturing process with injection molding of the present invention. Figure 5: This is a sectional view of the manufacturing process of the present invention with compression molding. [Illustration of the drawing number of the drawing]: (2 0) (40) 4 11)) 5 0) (51) Text and pattern layer breathable mold group: Foot post cavity: (Master mold: (42 Elastomer layer: (Elastomeric material block: Elastic film layer: (1 0) Release layer: ( 30) Male mold: (4 1) Injection hole: (412) Button cavity: (4 2 1) Foot post · (6 1) Button piece: (70)

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Claims (1)

! 2248〇1 Prime No. 92115478 — VI. Patent Application Features: It can be cured and heat-set by pressing and heating to form an elastic layer on the elastic thin layer. 4. According to the manufacturing process of the thin hard keys according to item 1 of the scope of the patent application, before the printing, the elastic film layer is provided with a peelable release layer on the back edge opposite to the printing surface, so that the text and patterns The printing operation of the layer is more accurate, and the release layer must be peeled off before the thin elastic layer is put into the mold. 5. According to the process of thin hard keys described in item 1 of the scope of patent application, where the key sheet can be acrylic or general engineering plastic material, ^, if the key sheet is transparent, it can be used in One of the outer faces is inscriptions and patterns. 々 人为 6, according to the scope of the patent application, where the elastic film layer determines the text, the pattern layer is 7, according to the scope of the patent application, where 'where' the text, the pattern layer is transparent The color of light. 8. According to the first step of the scope of the patent application, the color material of the text and pattern layer brush is opaque color. The printed text and pattern layer of the thin hard keys described in item 1 can be pre-transparent or non-transparent. Type of light-transmitting structure. When the system of the thin hard key described in item 6 is a light-transmitting structure, it is printed. When the system of the thin hard key described in item 6 is a light-opaque structure, its print is 0.