KR20130037403A - Manufacturing method of a portable device - Google Patents

Abstract

PURPOSE: A portable terminal and a production method thereof are provided to enable a producer to effectively produce the portable terminal by using a hardwood slice. CONSTITUTION: A both-sided tape or a melting film(25) is attached to a surface of a structure(30), or adhesive is coated on the surface of the structure. A hardwood slice(20) and a coating film(40) are gradually laminated on the structure. The coating film increases an adhesive force between the structure and the hardwood slice. The hardwood slice is strongly attached to the structure according to pressure and heat with a mold(50).

Description

Portable terminal and manufacturing method thereof

The present invention relates to a portable terminal and a method for manufacturing the same, and more particularly, to a portable terminal and a method for manufacturing the same by applying a solid wood to the appearance of the portable terminal.

A portable terminal is a device that is easy to carry by a user, and is a device that can perform various types of contents such as a call, wireless internet, and broadcast reception. Therefore, it can be said that such a portable terminal is used not only as an IT device but also as one accessory.

Due to the characteristics of the portable terminal, there is a demand for various exterior designs, and for example, there is a need to provide a portable terminal having a feel of solid wood. The feeling of wood is suitable for expressing warm and naturalness.

However, solid wood can itself be broken or scratched by external impacts. In addition, there is a problem that is difficult to apply to mass-produced portable terminals.

1 shows an example of a portable terminal 1 to which a wooden pattern is applied. Specifically, a mobile terminal in which a wooden pattern is applied to the rear of the mobile terminal, that is, the battery case is illustrated.

In the conventional portable terminal, the solid wood pattern is manufactured using an artificial film artificially expressing the solid wood pattern without using real wood. That is, the portable terminal 1 is manufactured by using similar logs rather than actual logs.

As shown in FIG. 2, a similar solid film is manufactured by first printing a solid wood pattern 3 on the surface of the film 2. That is, the artificial wood film 2 is artificially printed to produce a similar wood film 2. Then, the similar wood film 2 is formed into a desired shape. This step is shown in Figure 2 (a).

The similar wood film 2 should be attached to the structure of the portable terminal, for example the battery case 5. To this end, first, the similar wood film 2 is inserted into the mold 4, and the similar wood film 2 is attached to the surface of the injection product by injecting the injection material into the mold 4. This step is illustrated in Figures 2 (b) and 2 (c).

Of course, there is also a method of attaching the similar wood film 2 to the structure 5 of the portable terminal through double-sided tape or bond. However, in order to increase adhesion, a method of expressing a similar solid wood pattern on the structure of a mobile terminal through insert injection is common.

However, the similar solid wood film can be produced as closely as possible to solid wood, but it cannot fully express the feel and pattern of the actual solid wood. Therefore, the user has no choice but to have an artificial feeling in the feeling transmitted to the similar wood film. For this reason, it is necessary to apply the actual wood to the appearance of the mobile terminal, but there is a problem in that it is not easy due to the nature of the wood itself.

On the other hand, it is also possible to process the external case of the mobile terminal directly from solid wood. However, when the external case itself is made of solid wood, only a small amount of production is possible, and the volume thereof is excessively large.

Therefore, there is a need to provide a portable terminal or an external case of the portable terminal that can be easily applied to manufacture real wood.

The present invention basically aims to solve the above-mentioned problem.

An embodiment of the present invention is to provide a portable terminal that can be produced in large quantities because of easy manufacturing.

An embodiment of the present invention is to provide a portable terminal and a method of manufacturing the same that can be easily manufactured through a solid wood slice to enhance the strength and moisture resistance.

An embodiment of the present invention is to provide a portable terminal and a method of manufacturing the same, because the solid wood slice can be firmly attached to the structure of the portable terminal, easy to use and beautiful in design.

Embodiments of the present invention to achieve the above object, the process of producing a solid wood slice through a solid wood impregnated with compression molding or synthetic resin; A surface treatment step of processing the front and back of the wood slice; And it provides a method of manufacturing a mobile terminal comprising the step of attaching the surface-treated wood slice to the structure of the mobile terminal.

The compression molding or the blended wood of the synthetic resin makes it possible to produce a wood slice with enhanced strength and water resistance. Through this, a thinner slice of wood can be manufactured, thereby preventing the volume of the portable terminal from increasing.

Impregnation of the synthetic resin may mean to put a solid wood inside the synthetic resin in the molten state so that the synthetic resin is impregnated into the solid wood.

The surface treatment process may include a laser etching process or a machining process for combining an artificial pattern with a real wood pattern on the front surface of the wood slice. Of course, such a surface treatment process may be a process to more clearly implement the actual wood pattern.

The surface treatment process may include a finishing process for character printing and coating on the entire surface of the solid wood slice after the laser etching process or machining. That is, it may include a finishing process performed on the front of the slice.

The surface treatment process may include a laser etch or machining process to form a step on the back to improve adhesion to the structure. That is, it may include a process for lowering the surface roughness of the back surface, or a process for forming a step to widen the bonding area.

This surface treatment process can be carried out in the state of the wood slice, it is also possible to perform after the wood slice is attached to the structure.

The attaching process may include a thermal fusion process and may include an insert injection process.

The insert injection process may be performed a plurality of times for attaching the planar structure and the wood slice and forming the curved structure. That is, it may include insert injection for attaching the planar structure and the wood slice, and insert injection for forming the curved structure and combining it with the planar structure and the wooden sulace.

Specifically, it may include an injection for forming the center of the structure and an injection for forming the outer shell of the structure. The previous injection is for the coupling between the structure and the back of the wood slice, and the later injection is for the coupling between the structure and the front of the wood slice.

Later injection can be made to form on the outer shell of the wood slice. Therefore, it is possible to form the outer shell structure of various forms such as curved surface.

The wood slice manufacturing process may include a hole forming process, and a process of forming a transparent polymer window through which a light source is transmitted by insert injection or interference fitting into the hole. Such transparent polymer windows can be applied to form keys or keypads of portable terminals and keys or keypads of keyboards.

The structure of the portable terminal may be a battery cover of the portable terminal, and may be a front cover or a front case of the portable terminal. Likewise, the outer case protecting the portable terminal may be such a structure.

Embodiments of the present invention provide a mobile terminal having a battery cover or a case forming an appearance, the battery cover or case, the structure is formed of a metal material or a plastic material; And it is possible to provide a portable terminal including a solid wood slice that is manufactured by compression-molded or synthetic resin impregnated wood, the surface treatment process is carried out on the front and back, and attached to the structure.

When the structure includes a plastic material, the wood slice may be attached to the structure by insert injection.

The structure, the base structure is formed at the same time the back of the wood slice is attached by insert injection; And an additional structure coupled to the base structure by additional insert injection after the base structure is formed.

Preferably, a viscous surface is interposed to increase adhesion between the back of the wood slice and the structure.

According to the present invention, it is possible to basically solve the above problems.

According to the embodiment of the present invention, it is possible to provide a portable terminal which is easy to manufacture and can be mass produced.

According to an embodiment of the present invention, it is possible to provide a mobile terminal and a method for manufacturing the same, which can be easily manufactured through a wood slice having enhanced strength and water resistance.

According to an embodiment of the present invention, the solid wood slice can be firmly attached to the structure of the portable terminal, thereby providing a portable terminal having a convenient design and a beautiful design, and a method of manufacturing the same.

1 is a perspective view of a mobile terminal to which a conventional similar wooden pattern is applied;
2 is a manufacturing process diagram of the portable terminal shown in FIG. 1;
Figure 3 is a manufacturing process of the solid wood slice according to an embodiment of the present invention;
4 and 5 are surface treatment process diagrams of the wood slice shown in FIG.
6 is a process diagram for one embodiment of attaching the wood slice shown in FIG. 3;
7 is a process diagram for another embodiment of attaching the wood slice shown in FIG. 3;
8 is a flowchart illustrating an embodiment in which the wood slice shown in FIG. 3 is applied to a keypad.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention described are for easily understanding the present invention, but the present invention is not limited thereto.

3 shows a method of manufacturing a wood slice applied to an embodiment of the present invention.

Embodiment of the present invention relates to a portable terminal capable of mass production rather than a portable terminal for a small amount of customized production through manual work. Therefore, it is important to prepare wood so that mass production is possible, and to process wood so as to be suitable for use in portable terminals. For this purpose, it is preferable to produce the wood slice 20 first.

Solid wood is easy to absorb moisture, and the deformation is easy to change depending on the amount of moisture absorption. In addition, there is also a problem that it is easily bent in the case of producing this in a slice. Due to these characteristics, when the wood is made into slices and used, there are many restrictions. Therefore, it is desirable to give the wood itself a stiffness and moisture resistance in order to produce the wood into slices.

As shown in FIG. 3 (a), the solid wood may be compressed to give the rigidity of the solid wood itself. In addition, by compression molding, the structure inside the solid wood can be made very dense, thereby imparting moisture resistance. That is, the wood 11 may be placed in the compression molding machine 10 and then compression molded. It is possible to produce a solid wood slice 20 shown in Fig. 3 (c) by slicing the compressed molded wood thinly. Therefore, it will be possible to mass produce the wood slice 20 through these processes.

As shown in FIG. 3 (b), the synthetic resin 12 may be impregnated in the solid wood 11 to impart rigidity of the solid wood itself. That is, the synthetic resin 12 can be impregnated into the tissue inside the solid wood to make the internal tissue more dense, thereby reinforcing rigidity and imparting moisture resistance. In other words, it is possible for the synthetic resin 12 in the molten state to penetrate and harden into the internal structure of the wood to improve the rigidity and water resistance of the wood as a whole. If necessary, it may be possible to form a fine gap in the wood 11 and to impregnate the synthetic resin 12 in the gap. Then, it is possible to produce a solid wood slice 20 shown in Figure 3 (c) by cutting the wood thinly. Therefore, it will be possible to mass produce the wood slice 20 through these processes.

The front surface of the wood slice 20 forms the outer surface of the portable terminal, and the rear surface may be referred to as a surface attached to the portable terminal. The outer surface of the mobile terminal is always within reach of the user. Therefore, it should be possible to prevent the occurrence of contamination or to easily remove the contamination. In addition, the back of the portable terminal should be attached to the portable terminal very firmly. For this purpose, it is preferable that a surface treatment process for processing the front and back of the wood slice is performed.

4 and 5 show an example of such a surface treatment process.

The wood slice 20 may be applied to a flat appearance of a mobile terminal or may be applied to a curved appearance. Accordingly, the wood slice 20 may be formed to conform to the shape of the structure of the mobile terminal to be attached. Of course, such foaming may occur simultaneously with attachment.

4 and 5 illustrate an example in which forming is performed first and then a surface treatment process is performed to be applied to the curved appearance of the mobile terminal, but the present invention is not limited thereto.

Specifically, in the case of the surface treatment after forming, the size of the solid wood slice 20 can be very precisely matched, there is an advantage that can be carried out the required processing in the correct position. However, since the shape is complicated, there is a problem in that equipment installation and processing methods for processing are complicated.

On the contrary, when forming after surface treatment or forming simultaneously with attachment, surface treatment becomes simple, but it is difficult to precisely size the size of the solid wood slice 20 for the structure to be attached.

The above-described surface treatment process may be said to include a treatment process for the front surface and the back surface of the wood slice.

First, the surface treatment process with respect to the whole surface of the wood slice 20 is demonstrated.

The front surface of the solid wood slice 20 may be performed to reduce the surface roughness very much. For example, it is possible to machine the surface through milling or NC machining. In addition, it is also possible to process a surface by a laser etching process.

For this processing, a milling apparatus or an NC processing apparatus 22 may be used, and a laser etching processing apparatus 21 may be used.

This front processing can be performed to combine the artificial pattern with the actual wood pattern. And, it may be performed so that the actual solid wood pattern may appear more clearly.

In addition, the back processing may be performed in a similar manner so that the wood slice 20 can be more firmly attached to the structure of the mobile terminal. That is, when the wood slice 20 is attached to the structure of the mobile terminal through injection or bonding, the back surface may be processed to be more firmly attached.

Specifically, machining may be performed to form the stepped portion 23 on the back side. Through the stepped portion, the wood slice 20 may be prevented from moving in the normal direction in the structure. In addition, the adhesion area between the wood slice 20 and the structure will be enhanced.

As shown in Figure 5, it is preferable that the finishing process is further performed on the front surface of the solid wood slice 20. That is, a process of printing a letter or a shape on the front surface may be further performed. For example, a letter or a shape may be printed on the front surface of the solid wood slice 20 by various methods such as silk printing, sublimation transfer, and façade. This finishing process can also be said to be included in the above-described surface treatment process. Here, the shape may include a manufacturer's trademark or character.

After the printing process, a coating process for coating the exterior surface may be performed. After the coating process is carried out, it is preferable that the coating film is firmly formed by UV curing or thermal drying. Of course, the coating process may be a process of forming a glossy film on the entire surface of the wood slice.

A coating apparatus 24 for spraying the coating liquid may be used for this coating process.

The finishing process may include a printing process and a coating process as described above. Since the coating film is formed on the printed portion, the printed portion may not be erased, and contamination may be prevented.

5 illustrates an example in which the above-described finishing process is performed after the wood slice 20 is attached to the structure 30 of the mobile terminal. However, the present invention is not limited thereto. That is, it is also possible that the wood slice 20 is attached to the structure 30 after the finishing process is first performed on the wood slice 20.

Here, the position of the printing portion should be provided at a predetermined position with respect to the structure 30 of the portable terminal. Therefore, it may be more preferable that the finishing process is performed after the wood slice 20 is attached to the structure 30 in order to accurately fit the printed portion.

Hereinafter, the attaching process of the wood slice 20 and the structure 30 will be described in detail with reference to FIGS. 6 and 7. As described above, the surface treatment process may be performed after the adhesion process, and the adhesion process may be performed after the surface treatment process.

6 illustrates a heat fusion step as an example of an attachment step.

First, a double-sided tape, a bond treatment or a molten film 25 may be attached to the surface of the structure 30, and then the wood slice 20 and the coating film 40 may be sequentially stacked. Here, the molten film 25 and the like means a means for enhancing the adhesion between the structure 30 and the wood slice 20, that is, both.

This adhesion promoting means will form a viscous surface, that is, a viscous surface.

In addition, the molten film 25 may be formed on the back surface of the solid wood slice 20 instead of the surface of the structure 30. Therefore, the viscous surface 25 is interposed between the structure 30 and the wood slice 20 may be referred to as a configuration for enhancing the adhesion between the two.

Thereafter, it is possible to firmly attach the wood slice 20 to the structure 30 by applying pressure and heating through the mold 50. Of course, since the viscous surface 25 is interposed, the solid wood slice 20 may be more firmly attached to the structure 30.

In this case, the viscous surface 25 may be formed not only in thermal fusion but also in the case of injection described later. In this case, the viscous surface 25 may be formed on the back surface of the solid wood slice 20.

Here, the structure 30 must be manufactured by injection or casting. For example, in the case of injection, it will be a plastic structure, and in the case of casting or forging, it will be a metal structure.

On the other hand, in the case of manufacturing the metal structure 30 through casting or forging, it will be preferable to perform the wood slice 20 attachment process after the structure 30 is manufactured. Likewise, in the case of manufacturing the plastic structure 30 through injection, the attaching process may be performed after fabricating the structure 30.

However, this attachment process may be performed simultaneously with the injection process. That is, it will be possible to attach the solid wood slice 20 to the structure while forming the structure 30 through the insert injection process.

FIG. 7 shows an example of attaching the wood slice 20 to the structure 30 via insert injection. That is, specifically, the insert injection process for attaching the wood slice 20 to the structure 30 may be similar to that illustrated and illustrated in FIG. 2.

Here, the upper portion of FIG. 7 shows a state in which the wood slice 20 and the structures 31 and 32 formed in the respective insert processes are separated, and in the lower portion of FIG. Is shown.

As shown in FIG. 7, the insert injection process may be performed a plurality of times. Therefore, the structure formed as the insert injection is performed can be formed in a plurality of places (31, 32).

Specifically, the wood slice 20 may be attached only to the planar portion 31 of the portable terminal structure. Thus, in many cases it is possible to ensure that the wood slice 20 is attached only to the central portion of the structure and the wood slice 20 is not attached to the outer curved portion 32.

Here, the structure 30 is represented by a planar portion 31 and a curved portion 32. However, it is not limited thereto. That is, the structure 30 may be represented by the base structure 31 and the additional structure 32. In other words, the structure 30 may include a main base structure 31 and an additional structure 32 attached thereto.

First, the back side of the wood slice 20 is attached to a part of the structure through insert injection. That is, the entire back surface of the wood slice 20 is completely coupled to the portion 31 of the structure through the first insert injection.

Next, insert injection may be performed to form the outer shell of the structure. Subsequent insert injection may be formed to be integral with the previous structure 31 and to cover a portion of the front face of the wood slice 20. That is, it may be formed to cover the outer shell of the solid wood slice 20 while forming the outer shell 32 of the structure.

Therefore, basically the back surface of the wood slice 20 is attached to the structure 31, the front outer shell of the wood slice 20 is also surrounded by the structure 32 is covered. It is therefore possible to make the wood slice 20 more firmly attached to the structure.

Here, the multiple injection molding process can also expect the following effects. That is, the insert injection process may be performed through different materials, or the insert injection process may be performed to have different colors. Therefore, it is possible to manufacture portable terminals having various designs. Of course, it is also possible to more securely combine the portable terminal structure and the wood slice 20 through a plurality of insert injection process.

In addition, the formation of complex structures 32 is facilitated. When the structure is configured to surround the internal interior of the portable terminal, the complex structure 32 may be necessary for the shape of the internal interior or the combination with other components. Therefore, it is possible to easily form the structures 31 and 32 due to such a plurality of insert injection process.

Then, materials having different strengths can be used. For example, it is possible to have different materials for the part to be reinforced and especially for the part to be strengthened compared to the other part, or for parts that are not to be reinforced. This not only reduces the material cost but also increases the reliability of the product.

More specifically, the coupling means of the battery cover or the case of the portable terminal may be more easily formed due to the plurality of insert injection.

As described above, the base structure 31 and the additional structure 32 are sequentially formed through a plurality of insert injections to be integrated with each other. Here, the battery cover or case of the portable terminal may be referred to as a configuration combined with the components of the other portable terminal.

For example, the battery cover of the portable terminal may be combined with the case or the front cover of the portable terminal. Thus, these structures have configurations to be combined with other configurations. This coupling configuration may be a hook or slot or groove into which the hook is inserted. In addition, it may have a configuration such as a boss in which a hole into which a screw is inserted is formed.

In FIG. 7, the hook 34 and the boss 35 configuration are illustrated as an example of such a coupling configuration. An example is shown in FIG.

The coupling configuration may be formed on each of the above-described base structure 31 and the additional structure 32 or each may be formed. Here, the coupling configuration further complicates the shape of the structure 30. Therefore, it may be desirable to separately form such a coupling configuration. Thus, the coupling components, for example hooks or bosses or the like themselves, may be referred to as additional structures.

Therefore, it is possible to increase the adhesion between the wood slice and the structure through a plurality of insert injections, and it is possible to easily form a coupling configuration such as a hook or a boss.

After the wood slices 20 are attached to the portable terminal structures 31 and 32 as described with reference to FIGS. 6 and 7, a finishing process for the front surface of the wood slices may be performed as described with reference to FIG. 5. have.

In the above-described embodiment, the case of the portable terminal, specifically, the battery case has been described as an example. However, it is not limited thereto. That is, a display is formed on the front of the portable terminal, but the front case or cover of the portable terminal may be formed to have a bezel portion. Accordingly, the wood slice may be attached to the bezel portion as described above.

Through this, it is possible to form a wooden pattern on the front as well as the rear of the portable terminal.

In addition, it may be possible to form a wood pattern on a portable terminal having an input key or a keypad rather than a portable terminal in the form of a touch screen.

8 shows a cross-sectional view of a portion of a portable terminal keypad. Here, the configuration corresponding to the above-described structure of the mobile terminal is the key input unit 60 and may be made of silicon or the like. The wood slice 20 may be attached to the front surface of the key input unit in various ways as described above, and the front surface of the wood slice may be surface treated or finished in various ways described above.

On the other hand, the specific keypad may be formed to transmit the light inside. That is, when a specific key is selected, light may be emitted through a window of the specific key.

Thus, holes 22 may be formed in the wood slice to implement this. That is, holes may be formed through the hole forming process. In addition, the hole 22 may be formed with a window 21 forming an optical path so that light can be transmitted to the outside without scattering.

The window 21 may be an injection-molded material, for example, may be formed of methacrylate resin (PMMA). That is, it is possible to integrally form the window 21 solid wood slice through insert injection or to force the window into the hole. However, it would be desirable to form the window 22 through insert injection taking into account the thickness and strength of the wood slice.

After the window 21 is formed, the above-described surface treatment or finishing process of the wood slice may be performed. For example, the transparent film may be attached to the front surface of the wood slice or the coating film 40 may be formed. Through these processes, it is possible to implement a real wood pattern on the cap of the mobile terminal.

The above-described embodiment relates to a keypad of a portable terminal. However, it is not limited thereto. For example, it can be applied to a keypad or a key of a keyboard. In addition, the present invention may be applied to an external case protecting a mobile terminal.

Therefore, it is possible to form a beautiful design by applying the actual solid wood pattern to a variety of mobile devices and to meet the various design needs of the user. In addition, it is possible to provide a portable device that is easy to use by preventing the bulk of the portable device to implement the actual wood pattern.

20: wood slice 30: mobile terminal structure
40: coating film (coating film) 60: key input unit

Claims (10)

A step of producing a wood slice through the wood by compression molding or impregnated with a synthetic resin;
A surface treatment step of processing the front and back of the wood slice; And
And attaching the surface-treated solid wood slice to the structure of the portable terminal. The method of claim 1,
The surface treatment process includes a laser etching process or a machining process for combining the artificial pattern with the actual solid wood pattern on the front surface of the solid wood slice. The method of claim 2,
The surface treatment process is a manufacturing method of a mobile terminal, characterized in that after finishing the laser etching process or machining process for the character printing and coating on the front surface of the wood slice. The method of claim 1,
The surface treatment process includes a laser etching process or a machining process to form a step on the rear surface to improve the adhesion with the structure. The method of claim 1,
The attaching process is a manufacturing method of a mobile terminal, characterized in that it comprises a heat fusion process or an insert injection process. The method according to claim 6,
The insert injection process is a method of manufacturing a mobile terminal, characterized in that is performed a plurality of times to attach the planar structure and the wood slice and to form a curved structure. A mobile terminal having a battery cover or a case forming an appearance,
The battery cover or case,
A structure formed of a metal material or a plastic material; And
A portable terminal comprising a wood slice manufactured by compression molding or a material impregnated with a synthetic resin, and subjected to a surface treatment process on a front surface and a rear surface thereof and attached to the structure. The method of claim 7, wherein
If the structure comprises a plastic material,
The wood slice is a portable terminal, characterized in that attached to the structure by insert injection. The method of claim 8,
The structure comprises:
A base structure formed at the same time as the back surface of the wood slice is attached by insert injection; And
And an additional structure coupled to the base structure by additional insert injection after the base structure is formed. The method of claim 7, wherein
And a viscous surface interposed between the back of the wood slice and the structure to increase adhesion between the two sides.

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