TW510845B - Hand tool with injection-molded protective layers and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a hand tool with a protective layer on handle part and the manufacturing method thereof. The manufacturing method comprises the following steps: (1) forming main body, (2) pretreating before injection, (3) clamping molds, (4) injection molding, (5) separating molds, (6) electroplating and (7) finishing. The product of the present invention comprises a covered portion and an uncovered portion. The outer layer of the cover portion is provided with one or more piece of plastic injection molded protective layers. Each protective layer has a first edge and an opposite second edge, and the first edge does not contact the second edge. The outside surface of the uncovered portion has an electroplating layer. Thus, the present invention is suitable for structures with irregular shapes or special configurations to extend the application of the protective layer. Moreover, the protective layer is only formed on the contact region, not wasting at all. Further, the user has better touch while holding, and the anti-sliding effect is enhanced at the same time.

Description

510845 V. Description of the invention α) [Technical Field] The present invention relates to a hand tool with a plastic injection protective layer and a manufacturing method thereof, and particularly to a hand tool with a plastic injection protective layer and a manufacturing method thereof, which is matched with a special The mold and process can shoot a protective layer on irregular or special shaped hand tools. [Previous technology] Please refer to the first to third figures. The traditional manufacturing method of hand tools with a grip protection layer includes: 1. Basic process 91: forming or assembling a single part or a plurality of parts into a conductive metal Hand tool 80. 2. Electroplating 92: The hand tool 80 is immersed in a plating solution for electroplating, and a plating layer 81 is formed on the surface. Third, the sleeve sheath 93: a traditional sheath 82 is sleeved on the exterior of the hand tool 80 that has the electroplated layer 81, and its cross section is ring-shaped. Since the outer surface of the electroplated layer 81 is very smooth, the ring-shaped traditional protective layer 82 cannot be attached to it, but can be fixed in place in a ring-like manner. 4. Finished product 9 4: Form a finished product. However, since the traditional protective layer 8 2 cannot be attached to the electroplated layer 8 1 (sliding), it can only be fixed in a ring-like manner. If it is a hand tool with a regular shape (such as a screwdriver handle, hammer handle) Etc.), it can barely be fixed by this fitting method. However, for irregular or special-shaped coverings, it cannot be fitted in the traditional way. For example, the special covering 83 shown in the fourth figure (shown in dashed lines), or the fifth layer is separated from each other (non-circle). Type) of the independent small protective layer 84, both

510845 Fifth, the description of the invention (2) can not be nested in the traditional way. In addition, if the cross-section is C-shaped (see figure 9), if a protective layer is provided on the outer surface of this C-shaped, the technical difficulties cannot be overcome. At this time, it can only be embossed on the hard metal part or Making some protrusions to stop slipping, but it has the disadvantage of being too hard and uncomfortable. Therefore, it is necessary to develop new products to solve the above problems and disadvantages. [Objective and Effect] The main object of the present invention is to provide a hand tool with a plastic injection protective layer and a manufacturing method thereof, which can be applied to irregular shapes or special shapes to expand the application range of the protective layer. A secondary object of the present invention is to provide a hand tool with a plastic injection protective layer and a method for manufacturing the same. The protective layer is only provided at a required specific portion, which is not wasted, and the user has better touch when holding At the same time, improve its anti-slip effect. [Technical content] The present invention provides a hand tool with a plastic injection protective layer, which includes: a cladding portion and a non-cladding portion; characterized in that: the outer layer of the cladding portion is provided with one or more pieces of plastic injection Each protective layer has a first edge and an opposite second edge, and the first edge is not in contact with the second edge; the outer surface of the non-cladding portion has a plating layer. The present invention also provides a method for manufacturing a hand tool with a grip protection layer, which includes the following steps: (1) molding of the main body, (2) pre-treatment of injection,

510845 V. Description of the invention (3) (3) Combined mold, (4) injection molding, (5) separation mold, (6) electric clock, and (7) finished product. The above and other objects and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of the selected embodiments below. [Brief description of the drawings] The present invention will be described in detail with a preferred embodiment in conjunction with the drawings: The first drawing is a method for manufacturing a traditional hand tool with a sheathing layer

The second picture is a schematic diagram of a conventional hand tool before plating. The third picture is a conventional hand tool after electroplating and a cover is applied. The fourth picture is a traditional method that cannot produce a special cover type. A fifth picture. It is a schematic diagram of the traditional method that cannot produce a special protective layer type. The second diagram is the flowchart of the manufacturing method of the present invention. The seventh diagram is the schematic diagram before the injection molding of the present invention. The eighth diagram is the schematic diagram of the present invention when the closed mold is injected. The figure is a perspective view of the finished product of the present invention. The tenth figure is a schematic partial cross-sectional view of the finished product of the present invention. The eleventh figure is another embodiment applicable to the present invention. The twelfth figure is a cross-sectional view of the eleventh figure. Thirteenth figure is a cross-sectional view of the eleventh figure Two Fourteenth figure is a cross-sectional view of the eleventh figure Three

Page 6 510845 V. Description of the invention (4) [Illustration of drawing number] Basic process 11 Pre-treatment of injection 1 2 Combined mold 1 3 Plastic injection 14 Separate mold 1 5 Plating 16 Finished product 1 7 Hand tool 20 Non-wrapped part 2 1 package Cover 22 Mould 41 '42 Predetermined space 41 1, 421 Cover 50 First edge 5 1 Second edge 5 2 Plastic injection machine 60 Hand tool 80 Plating layer 81 Traditional cover 8 2 Special cover 8 3 Independent small cover 84 Body molding 91 Plating 92 Fitting sheath 9 3 Finished product 9 4 [Detailed description of the embodiment The present invention is a law, basically divided into first, for the manufacturing method of the seventh to ten tools, please refer to the first, the basic manufacturing is A conductive gold and a non-covered part 21 2. Injection of the former hand tool with a grip protection layer, and its manufacturing products and manufacturing methods. For the flow of this manufacturing method, please refer to the sixth figure and the related structural diagram. A hand with a plastic injection protection layer of the present invention includes the following steps: Process 11: Forming or assembling a single part or a plurality of parts is a hand tool 20, The hand tool includes a covering portion 22 (such as a portion to be clamped, locked, and snapped into a work object). Process 12: Please refer to the seventh figure to predict the hand tool

Page 7 510845 Description of the invention (5) ---- ^ __ A certain part (that is, the part where the protective layer is to be shot 50), at least the surface of the spoon should be cleaned, and the surface oil bleach should be removed, and then covered Section 22) a layer of adhesive (a film, not shown); in practice, two are coated with an adhesive fast-drying adhesive (such as the AB glue commonly known in the industry). Adhesive system is high_III. Combining mold 13: As shown in the eighth figure, the hand tool 20 is placed in the molds 41 and 42 and has a predetermined space 411 and 421 for injection after the mold is closed. Filling materials, as shown in the ninth figure. 4. Injection molding 13. A plastic injection machine 60 is used to thermally melt a protective layer made of a plastic material into the predetermined spaces 411 and 421, and then cool and mold. V. Separating the mold 15: Open the molds 41 and 42 and take out the hand tool 20 from the molds 41 and 42. At this time, the protective layer 50 has been firmly attached to the covering part of the hand tool 20. 22 on. 6. Plating 16: The hand tool 20 with a protective layer 50 is immersed in a plating solution and electroplated so that the outer surface of the non-cladding portion 21 is plated with a plating layer (a thin layer on the surface is the same); and 17: Hand tools for completing this creation, as shown in Figures 7 and 10. In more detail, for a hand tool (such as pliers) that generally consists of two or more parts, the basic body forming step U further includes: (a) Part forming: forming of a plurality of hand tool parts; (b) heat treatment: number Heat treatment of hand tool parts; and (c) Assembly · Assembly of several hand tool parts.手 This hand tool contains only a single part (such as a screwdriver or hammer).

510845 V. Description of the invention (6) Assembly steps are hereby acknowledged. In terms of products, after being manufactured by the above-mentioned manufacturing method, the hand tool with a plastic injection protective layer of the present invention includes: a covering portion 2 2 and a non-covering portion 2 1; characterized in that: the covering portion 22 The outer layer is provided with one or more plastic injection protective layers 50, each protective layer 50 has a first edge 51 and an opposite second edge 51, and the first edge 51 is not in contact with the second edge 52 ( That is, no ring is formed);

The outer surface of the non-cladding portion 21 has a plating layer. In other words, its cross section is generally C-shaped or irregular, and it cannot be formed by a ring-shaped fitting method in a circle. Therefore, the present invention can be applied to a hand tool having an irregular shape or a special shape to expand the application range of the sheath. Secondly, this protective layer is only provided at the predetermined contacting place, and is not wasted. In addition, the protective layer of the present invention allows users of irregularly shaped or specially shaped handpieces to have a better tactile sensation when holding, and at the same time enhance their anti-slip effect.

Please refer to the eleventh to fourteenth drawings, which are another embodiment to which the present invention can be applied. Among them, the twelfth to fourteenth drawings are front, middle, and rear cross-sectional views, respectively. The tool used in this embodiment is an adjustable wrench. The adjustable wrench also includes a covering portion 22 and a non-covering portion 21 (including the movable chuck at the front end and the inside of the source hole at the end of the movable hand awarding area). Because the entire protective layer 50 is irregular, if it is still impossible to manufacture it using conventional techniques, it can be achieved in the manner of the present invention.

Ί Page 9 510845 V. Description of the invention (7) The above is only a detailed description of the present invention through a preferred embodiment, and any simple modifications and changes made to the embodiment will not depart from the spirit and scope of the present invention. From the above detailed description, those skilled in the art can understand that the present invention can indeed achieve the aforesaid objectives, and that it has indeed complied with the provisions of the Patent Law, and filed an application for an invention patent.

510845 Page 10 Brief Description of Drawings [Brief Description of Drawings] The present invention will be described in detail hereinafter with a preferred embodiment in conjunction with the drawings: The first drawing is a method for manufacturing a traditional hand tool with a sheathed cover The second picture is the schematic diagram of the traditional hand tool before plating. The third picture is the intention after the traditional hand tool is plated and fitted with a protective layer. The fourth picture is the schematic diagram of the traditional method that cannot produce a special protective layer.

The fifth picture shows that the traditional method cannot produce a special protective cover type.

The sixth diagram is a flowchart of the manufacturing method of the present invention. The seventh diagram is a schematic diagram of the present invention before injection molding. The eighth diagram is a schematic diagram of the present invention when the mold is closed. The ninth diagram is a perspective view of the finished product of the present invention. Partial cross-sectional view of the finished product of the invention. The eleventh figure is another embodiment to which the present invention can be applied. The twelfth figure is a cross-sectional view of the eleventh figure. The thirteenth figure is a cross-sectional view of the eleventh figure. The fourteenth figure is the cross-section view three of the eleventh figure. [Illustration of the drawing number] Basic process 11 Pre-treatment 12 Injection mold 13 Plastic injection 14 Separate mold 1 5 Electroplating 1 6

Page 11 510845 Brief description of the finished product 1 7 Non-covered part 2 1 Mould 41, 42 Protective part 5 0 Second edge 5 2 Hand tool 80 Traditional cover 8 2 Independent small cover 8 4 Body molding 91 Fitting protection Cover 93 Hand tool 20 Cover 22 Pre-defined space 4 1 1. First edge 5 1 Plastic injection machine 60 Electric layer 81 Special coating 8 3 Electroplating 92 Finished product 94 421

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Claims (1)

510845 VI. Scope of patent application 1 · A hand tool with a grip protection layer, comprising: a covering portion and a non-covering portion; characterized in that: one or more outer layers of the covering portion are provided according to one or more pieces Each protective layer made of plastic has a first edge and a second edge, and the first edge is not in contact with the second edge; the outer surface of the non-cladding portion has a plating layer. 2 · A method for manufacturing a hand tool with a grip protection layer, which includes the following steps: 1. Basic process: forming or assembling a single part or a plurality of parts into a conductive metal hand tool, the hand tool includes a Covering part and a non-covering part; 2. Pre-injection treatment: clean the surface of the covering part of the hand tool and remove the surface oil break, and then apply a layer of adhesive on the covering part; 3. Combine the mold : Put the hand tool into a mold, which has a predetermined space for filling material after the mold is closed. 4. Injection molding: Use a plastic injection machine to thermally melt out a plastic material in the predetermined space. Protective layer, and then cooling forming; 5. Separate the mold. Open the mold and remove the hand tool from the mold. At this time, the protective layer has been firmly attached to the covering part of the hand tool. 6. Plating: The hand tool is immersed in a plating solution for electroplating. Plating the outer surface of the non-cladding portion with a plating layer; and Page 13 510845 VI. Scope of Patent Application VII. Finished Product: Hand tools for completing this creation. 3. The method for manufacturing a hand tool grip protection layer as described in item 2 of the scope of patent application, wherein the glue is a high-adhesive, quick-drying glue.