TW565490B - Method of producing tool handles, and the products produced thereby - Google Patents

Abstract

The method of producing tool handle comprises the steps of: (1) to position a mandrel of a manufacturing machine and to inject plastic material to form an inner layer; (2) to release the positioning to leave positioning holes on the shaped inner layer, the inner layer then is processed by second time injection to completely envelop the inner layer with plastic and shape a middle layer; and (3) the middle layer being processed by third time injection to partially envelop the middle layer with plastic to thereby form an external layer with the middle layer partially exposed, and the handle of the tool with two colors in firm combining state being completed. On the handle made by these steps, the holes formed after taking off the mandrel of the manufacturing machine are holes for combining the stem of the tool; hence the holes made are not subjected to twisting and deformation, and is convenient for combining with the stem. Using this process, a handle of the tool with plural colors can be produced.

Description

565490 V. Description of the invention (1) 1. The technical field to which the invention belongs The present invention aims to provide a method for manufacturing a simple, tightly combined and beautiful tool handle and its products, and is particularly suitable for use in manual presentation such as 呈Knife, scraper or similar structure. I. The distribution of hand tools of the prior art is quite extensive. Professional work and use are ordinary. Ordinary families will also prepare one or two types, such as hammers, tree shears, etc., for irregular use. The most traditional hand guards and MU

Mm, hammer as an example, it is mainly because the hammer head has f holes for the rod body to be installed to complete the assembly and the user can hold it directly. The second is to use fi. This type of hammer has a simple structure, although it can reach a nail hammer ^目 目 # 'But its appearance is not beautiful, and the user's grip is not conveyed', 'The first hand tools can not reach the modern people's aesthetics and comfort. There is a cover at the end, which is easy to hold. The two-color sleeve with beauty can not make the hand tool as a whole. Although the sleeve in recent years also overcomes the lack of making a two-color sleeve with color changes, basin system: = lost, injecting-step material is injected twice to make It is a two-color sleeve, but: this type of plastic ... is easy to twist and deform, its reserve :: the hole can not be reserved for insertion:? 丨 啻 士 —— — „. Yangli Valley is easy to twist 565490 5. Description of the invention (2 ) The injection and the second injection are directly on the tool handle. This workaround will reduce the degree of production. To increase the yield, and the amount of plastic is still not ideal. Therefore, it is a third method to propose a deformation method. Manufacture of the main tool handle of the present invention Another important tool of the present invention, which can be made in the second and the thinnest, is to achieve the above-mentioned purpose. 1. Manufacture the machine; 2. Release the positioning and use a second plastic injection. Outside the layer, apply it to form a partial tool handle in the middle layer.

The pattern is not easy to align; it may be proposed that the end of the sleeve can improve the lack of deformation of the sleeve socket. The long time of plastic injection molding allows the overall production speed. Titus, because the plastic has shrinkage and affects its appearance, the reserved socket of the two-color tool handle is easy to twist, which is the purpose of the present invention. The goal is to provide a low cost and fast production method. The purpose is to provide a method for manufacturing a tool handle regardless of how deep the coupling jack is required. The purpose is to provide a combination that is tight / aligned accurately and has a handle structure. v. The steps taken by the method of the present invention include: positioning the axis, and then injecting plastic-the inner layer makes the formed inner layer have positioning holes, and the outer layer is applied, and the layer is completely covered to form an intermediate layer; and 3 With a second plastic injection, the middle layer partially covers the outer layer of the outer road, thereby completing the tightly combined two-colored tool handle 'the hole removed from the machine's axis is

Page 7 565490 V. Description of the invention (3) It is used to combine the shank hole of the tool handle. Because the shaft center is positioned during production, it will not be twisted or deformed, and it is convenient for the combination with the tool handle. Other features and specific embodiments of the present invention can be further understood in the following detailed description in conjunction with the accompanying drawings. 4. Embodiment Please refer to FIG. 1. The method of the present invention includes the following steps: 1. Positioning the axis of the machine, and then ejecting an inner layer with plastic 2. Loosen the positioning so that the formed inner layer has Locate the hole, apply the second plastic injection outside the inner layer, completely cover the inner layer to form the intermediate layer; 3, apply the third plastic injection outside the intermediate layer, partially cover the intermediate layer, and form the partial exposure of the intermediate layer Outer layer to complete the tightly combined two-color tool handle. In actual manufacturing, firstly, the axis A of the machine is positioned by the positioning rods B and C, and an inner casing 10 is formed by plastic injection. Please refer to FIG. 3, and after the positioning rod is retracted, The inner sleeve body 10 is provided with positioning holes 1 2 and 13, and the inner sleeve body 10 is provided with a required figure (not shown) and a plurality of combined protrusions 14. Then, a second plastic injection is applied, so that the second plastic is thinly coated on the outside of the inner sleeve body 10 and covered along its shape to form an intermediate sleeve body 20, which is provided with a pattern 2 on the middle sleeve body 20. 2, and a plurality of protrusions 2 3 are provided at other places, and a round protrusion 2 1 (as shown in FIG. 4) at the end is provided. The middle sleeve body 20 is borrowed from the inner sleeve body 1 0. The positioning holes 1 2, 1 3 and the plurality of protrusions 14 are closely combined.

565490

V. Description of the invention (4) At this time, on 〇, the portion of the round protrusion 20 in the shape of the middle sleeve body 2 has a cost reduction due to the inner secondary plastic, and the inner sleeve body 20 is covered. The outer sleeve 3 of the middle sleeve 30 is different in color from the eye-ginseng material of the figure 2 and 3 1 in order to take into account the beauty. Furthermore, the tool handle is straight 1, will be made 2, the positioning hole 3 is loosened, and the inner layer is Then apply a third component of the outer body 3 1 to expose the pattern 2 along the 0 it is set. 2 0 is provided with a pattern 2 2 and the combination is connected with 6 drawings. If you use it, you can quickly 0 and use it. Please refer to Figure 7 to make the shaft position of the machine tool. The tool is applied with a second plastic, tie 0, so that the middle, and the coat pattern 2 2 and 2 and the outer shell 5 (shown in the figure) will be exposed to the material and even four times the 20 series is used, and the amount is stable. High sexuality, with pattern 2 2 out of its own image continuity. The interposition body 20 is accurately aligned and comfortably aligned. The present invention has a position of 40 centimeters on the center of the platform. The axis of the platform is combined with the secondary plastic injection at the end of the handle to partially cover the 20 body. 3 0 is covered with a pattern 3 3 0 0. Therefore, the available plastics can be disposable plastics, which can reduce the cost and not cause shrinkage. 5 The partial envelope 3 1 due to the two-color TPR produced by the outer shell) For the first manufacturing flow, the plastic injection step is performed so that the inner layer has 5 of the inner layer inserted. The plastic is along the middle sleeve body 2 and the end middle sleeve body 2 1, so it can be neatly recycled for reuse. , It is a thin shot, and the quality of the outer cover body is affected by the middle. The two plastic pattern handles 5 are both raw materials, and the process can be included: the inner layer; the central shank hole and the central shank hole; Inner layer plus

565490 V. Description of the invention (5) Covered, and the plastic flows into the central shank hole through the positioning hole, and the cover and inner layer of the tool are fully covered and combined to form an intermediate layer (see Figure ^ a); and 4 3. On the outside of the middle layer, a third plastic injection is applied to partially cover the middle layer to form a partially exposed outer layer of the middle layer, thereby completing a compact ^^ hand tool. " It can be known from the above that the manufacturing method and the structure produced by the present invention have the advantages as follows: Λ 1, using three plastic injections, making the patterns of different layers easy to align, making the patterns have continuity, and making the tools The handle with a beautiful appearance 2 Although the plastic is injected three times, but the inner sleeve body will not be exposed, so it can be made from recycled non-disposable plastic, and the use-the amount of middle sleeve of cultural plastic is very small Not only will not increase costs, 2 can significantly reduce costs. σ When the tool handle is manufactured separately, the shaft is positioned by the positioning rod, so the hole can be made no matter how much or how thin. ^ The handle hole will not be twisted =, which is convenient for combining with tools. The cross layer 4 tool handle can also directly come out of the middle layer along the hole of the inner layer to the center of the inner layer plus its bonding strength. Manufactured on the tool handle, the shape is completely covered, and the shank hole 'is directly combined with the tool handle through the second plastic shot and the plastic is passed through the positioning. Equality of the scope of patent application: Second, m Ju Fan T should be the

Page 10 565490 V. Description of the invention (6) Covered by technology. In summary, the present invention discloses an innovative method for manufacturing a tool handle and an article thereof, which improves the lack of a conventional two-color tool handle that is not easy to make, and provides a method for manufacturing a tool handle that is convenient to manufacture and reduces costs, and has an Novelty and industrial use value, filed an invention patent application according to law.

Page 11 565490 Brief description of the drawings V. Brief description of the drawings The first diagram is a manufacturing flowchart of the present invention. Figure 2 is a perspective view of an embodiment of the present invention. Fig. 3 is a sectional view of the inner sleeve of the present invention. Fig. 4 is a sectional view of the intermediate sleeve of the present invention. Fig. 5 is a sectional view of a finished product of the present invention. FIG. 6 is a schematic diagram of the use state of the embodiment of the present invention. Fig. 7 is a second manufacturing flowchart of the present invention. Figure 7a is a cross-sectional view of the intermediate sleeve of the second manufacturing process of the present invention

Page 12

Claims (1)

565490 patent application scope on the inner body. In addition, there are a prototype and a plurality of combined convex parts of a desired shape;-when the middle sleeve body is connected with the inner sleeve body, and the end of the middle sleeve body is extended backward-a round protrusion, and the plurality of inner sleeve bodies are combined with the convex portion The outer sleeve, and the intermediate sleeve body is provided with a desired pattern and a plurality of combined convex portions; and 4 7-outer body 'is partially covered outside the intermediate sleeve body, and the multiple combined convex portions of the intermediate sleeve body are used The outer casing is combined to increase the bonding strength. The outer casing is provided with a pattern that is the same as the middle sleeve body, thereby completing a pattern handle that is accurate and tightly aligned. According to the manufacturing method of the tool handle described in item 1 or 2 of the scope, the plastic used in the inner layer of the Eighth Middle School may be one of the secondary, tertiary, and quadruple plastics that are recycled. According to the manufacturing method of the tool handle described in item 2 or item 2 of the patent, the plastic color of the middle layer and the plastic color of the outer layer are different. For example, the manufacturing method of the tool handle described in item 2 or 2 of the patent scope. The material of the Df2 layer is a synthetic rubber with good touch (commonly known as Πί; the method of manufacturing the tool handle described in item 1 or 2 "In the second layer of plastic injection, the missing part can be reserved, and the fourth part is used to fill the missing part to form a multi-colored tool. Page 14