KR101923436B1 - manufacturing method of a portable device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a portable terminal, and more particularly, to a method of manufacturing a portable terminal in which a log is applied to the exterior of the portable terminal.
According to an embodiment of the present invention, there is provided a method of manufacturing a wood slice, comprising: a step of producing a wood slice through compression-molded or impregnated wood; A surface treatment step of processing the front and back surfaces of the wood slice; And attaching the surface treated wood slice to the structure of the portable terminal.

Description

[0001] The present invention relates to a portable terminal and a manufacturing method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal and a method of manufacturing the same, and more particularly, to a portable terminal in which a log is applied to the exterior of a portable terminal and a method of manufacturing the same.

2. Description of the Related Art A portable terminal is a device that is portable by a user and is capable of performing various types of contents such as a call, a wireless Internet, and a broadcast reception. Therefore, it can be said that the portable terminal is used not only as an IT device but also as an accessory.

Therefore, it is necessary to provide a portable terminal having a feel of a tree. The feeling of such wood is suitable for expressing warmness and naturalness.

However, the wood itself may be cracked or scratched by an external impact. In addition, there is a problem that it is difficult to apply to a mass-produced portable terminal.

1 shows an example of a portable terminal 1 to which a wooden pattern is applied. Specifically, a portable terminal to which a log pattern is applied to the back surface of the portable terminal, that is, the battery case is shown.

In a conventional portable terminal, a portable terminal is manufactured using an artificial film that artificially expresses a lumber pattern without using actual lumber. That is, the portable terminal 1 is manufactured using the similar wood rather than the actual wood.

As shown in Fig. 2, a pseudo-circular film is first produced by printing a tree-like pattern 3 on the surface of the film 2. That is, a pattern similar to a wood-like pattern is artificially printed to produce a pseudo-circular film 2. Then, the similar wood film 2 is formed into a desired shape. This step is shown in Fig. 2 (a).

The pseudo wood film 2 should be attached to the structure of the portable terminal, for example, the battery case 5. To this end, the pseudo-circular film 2 is first inserted into the mold 4, and the injection molding is injected into the mold 4 to attach the pseudo-circular film 2 to the surface of the injection mold. These steps are shown in Figs. 2 (b) and 2 (c).

Of course, there is also a method of attaching the like wood film 2 to the structure 5 of the portable terminal through a double-sided tape or a bond. However, in order to increase the adhesive force, a method of expressing a simulated wood pattern on a structure of a portable terminal through an insert injection is generally used.

However, a similar wood-based film can be produced as closely as possible to a wood, but it can not perfectly represent the feel and pattern of the actual wood. Thus, the user is forced to have an artificial feeling in the feeling itself transmitted to the pseudo-wooden film. For this reason, it is necessary to apply the actual wood to the appearance of the portable terminal, but there is a problem 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 portable terminal directly into a tree. However, when the outer case itself is made of wood, it is possible to produce only a small amount, and the volume thereof becomes too large.

Accordingly, there is a need to provide a portable terminal and an external case of the portable terminal that can be manufactured by applying the actual wood easily.

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

It is an object of the present invention to provide a portable terminal that can be manufactured in a simple manner and can be mass-produced.

An object of the present invention is to provide a portable terminal capable of easily manufacturing a portable terminal through a wood slice with improved strength and moisture resistance, and a manufacturing method thereof.

It is an object of the present invention to provide a portable terminal in which a wood slice can be firmly attached to a structure of a portable terminal, so that it is easy to use and has an attractive design, and a manufacturing method thereof.

In order to achieve the above-mentioned object, an embodiment of the present invention provides a method for manufacturing a wood slice, comprising the steps of: preparing a wood slice through compression-molded or impregnated wood; A surface treatment step of processing the front and back surfaces of the wood slice; And attaching the surface treated wood slice to the structure of the portable terminal.

It is possible to produce a wood slice in which the strength strengthening and the water resistance are improved through the compounded wood of the synthetic resin. This makes it possible to manufacture thinner slices of wood, thereby preventing the volume of the mobile terminal from increasing.

The impregnation of the synthetic resin may mean that the natural wood is put into the molten synthetic resin and the synthetic resin is impregnated into the natural wood.

The surface treatment process may include laser etching or machining to combine artificial patterns with actual wood patterns on the entire surface of the wood slice. Of course, such a surface treatment process may be a process for realizing a real wood pattern more clearly.

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

The surface treatment process may include a lacquer etching process or a machining process which forms a step on the back surface to improve the adhesion with the structure. That is, it may include a process of lowering the surface roughness of the back surface or forming a step to widen the bonding area.

This surface treatment process can be performed in the log slice state, and it is also possible that the log slice is performed after it is attached to the structure.

The attachment 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 to attach the planar structure and the wood slice and to form the curved structure. That is, insert injection for attaching a planar structure and a wood slice primarily, and insert injection for forming a curved structure and combining it with the planar structure and the raw wood slice can be included.

Specifically, it may include an injection to form a central portion of the structure and an injection to form an outer periphery of the structure. The previous injection is for joining between the structure and the back of the log slice, and the later injection is for joining between the structure and the front of the log slice.

The later injection may be formed on the outer edge of the wood slice. Accordingly, various types of outer shell structures such as curved surfaces can be formed.

The wood slice manufacturing process may include a hole forming process and a process of forming a transparent polymer window through which the light source is transmitted by insert injection or interference fit in the hole. This transparent polymer window can be applied to form keys or keypads of a portable terminal and keys or keypads of a keyboard.

In addition, the structure of the portable terminal may be a battery cover of the portable terminal, or may be a front cover or a front case of the portable terminal. Similarly, an external case protecting the portable terminal may be such a structure.

According to an aspect of the present invention, there is provided a portable terminal having a battery cover or a case for forming an appearance, the battery cover or case being made of a metal material or a plastic material; And a wood slice that is manufactured through compression molding or a wood impregnated with a synthetic resin, and is subjected to a surface treatment process on the front surface and the back surface, and attached to the structure.

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

Wherein the structure comprises: a base structure formed by inserting a rear surface of the wood slice by insert injection; And an additional structure coupled with the base structure by further insert injection after the base structure is formed.

It is preferable that a viscous surface is interposed between the back surface of the log slice and the structure to increase the adhesion force therebetween.

According to the present invention, the above-described problems can be solved basically.

According to the embodiments of the present invention, it is possible to provide a portable terminal which can be manufactured in a simple manner and can be mass-produced.

According to the embodiment of the present invention, it is possible to provide a portable terminal capable of easily manufacturing a portable terminal through a wood slice with improved strength and moisture resistance, and a method of manufacturing the portable terminal.

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

FIG. 1 is a perspective view of a conventional mobile terminal to which a similar pattern is applied; FIG.
FIG. 2 is a view illustrating a manufacturing process of the portable terminal shown in FIG. 1;
3 is a view showing a process of manufacturing a wood slice according to an embodiment of the present invention;
Figs. 4 and 5 are views showing the surface treatment process of the wood slice shown in Fig. 3;
Figure 6 is a process diagram for one embodiment of attaching the log slices shown in Figure 3;
Figure 7 is a process diagram for another embodiment of attaching the log slice shown in Figure 3;
FIG. 8 is a process diagram for an embodiment in which the log 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 below are for the purpose of facilitating understanding of the present invention, and the present invention is not limited thereto.

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

An embodiment of the present invention relates to a portable terminal capable of mass production, rather than a portable terminal, for small-sized customized production through hand operation. Therefore, it is important to prepare the logs for mass production and to process the logs to be suitable for use in mobile terminals. For this purpose, it is preferable to first produce the wood slice 20.

The logwood is easy to absorb moisture and has a characteristic of easy deformation depending on the water absorption amount. In addition, there is a problem in that it is easily bent when a slice is produced. Due to these characteristics, many restrictions are imposed on the use of sliced logs. Therefore, it is desirable to impart rigidity and moisture resistance to the log itself in order to make the log into a slice.

The rigidity of the log itself can be given by compression molding the log as shown in Fig. 3 (a). Further, the structure of the inside of the log is very dense by compression molding, and water resistance can be imparted. That is, the log 11 can be placed in the compression molding machine 10 and compression molded. It is possible to manufacture the log slice 20 shown in Fig. 3 (c) by thinly carving out the compression-molded log. Therefore, it is possible to manufacture the wood slice 20 in a large quantity through these processes.

The rigidity of the log itself can be imparted by impregnating the log 11 with the synthetic resin 12 as shown in Fig. 3 (b). That is, the synthetic resin 12 is impregnated into the inside of the log, so that the internal structure is made more dense to reinforce the rigidity and impart moisture resistance. In other words, the synthetic resin 12 in the melted state penetrates into the internal structure of the log and is cured, so that the rigidity and moisture resistance of the log can be improved as a whole. If necessary, it is also possible to form a minute gap in the log 11 and impregnate the synthetic resin 12 in the gap. Thereafter, it is possible to manufacture the log slice 20 shown in Fig. 3 (c) by thinning the log. Thus, it is possible to mass-produce the wood slices 20 through these processes.

The front surface of the wood slice 20 forms an outer surface of the portable terminal, and the rear surface is a surface attached to the portable terminal. The outer surface of the portable terminal is a place where the user's hand always reaches. Therefore, it is necessary to prevent the occurrence of contamination or to easily remove the contamination. In addition, the back surface of the portable terminal must be attached to the portable terminal very firmly. For this purpose, it is preferable to perform a surface treatment process for processing the front and back surfaces of the wood slice.

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

The wood slice 20 can be applied to a flat outer surface of a portable terminal or to a curved outer surface. Therefore, the wood slice 20 can be formed to conform to the shape of the structure of the portable terminal to be attached. Of course, such foaming may also occur simultaneously with attachment.

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

Specifically, when the surface treatment is performed after the forming, the size of the wood slice 20 can be adjusted very precisely, and the necessary processing can be performed at an accurate position. However, since the shape is complicated, there is a problem that equipment installation and processing methods for processing become complicated.

On the contrary, there is an advantage that the surface treatment is simplified when the foaming is performed after the surface treatment or the foaming is performed at the same time as the attachment, but it is difficult to precisely match the size of the wood slice 20 to the structure to be attached.

It can be said that the above-described surface treatment process includes a treatment process for the entire surface of the wood slice and a treatment process for the back surface.

First, the surface treatment process for the whole surface of the wood slice 20 will be described.

A process of significantly lowering the surface roughness can be performed on the front surface of the wood slice 20. For example, it is possible to process a surface through milling or NC machining. It is also possible to process the surface by laser etching.

For this processing, a milling device or an NC machining device 52 can be used, and a laser etching processing device 51 can be used.

Such frontal processing may be performed to combine artificial patterns with actual woodcuts. And, it may be performed so that the actual wood pattern can be displayed more clearly.

Also, the backside machining can be performed in a similar manner so that the wood slice 20 can be more firmly attached to the structure of the portable terminal. That is, when the log slice 20 is attached to the structure of the portable terminal through injection or bonding, the back surface can be processed so as to be stably attached.

Specifically, the machining can be performed to form the step portion 23 on the back surface. It is possible to prevent the wood slice 20 from moving in the normal direction in the structure through such stepped portion. In addition, the attachment area between the wood slice 20 and the structure is increased.

As shown in FIG. 5, it is preferable that a finishing process is further performed on the front surface of the wood slice 20. FIG. That is, a process of printing characters or shapes on the front surface can be further performed. For example, letters and shapes can be printed on the front surface of the log slice 20 by various methods such as silk printing, sublimation transfer, and transfer. It can be said that such a finishing process is included in the above-mentioned surface treatment process. Here, the shape may include a trademark or a character of a manufacturer.

After the printing process, a coating process for coating the outer surface can be performed. After the coating process is performed, it is preferable that the coating film is firmly formed through ultraviolet 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 a coating liquid for such a coating process may be used.

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 is not erased and the contamination can be prevented.

5 shows an example in which the above-described finishing process is performed after the log slice 20 is attached to the structure 30 of the portable 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. Thus, it may be more desirable for the finishing process to be performed after the wood slice 20 has been attached to the structure 30 to precisely align 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. FIG. 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.

Fig. 6 shows a thermal fusion process as an example of the adhering process.

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 laminated in order. Here, the molten film 25 or the like means a means for enhancing the adhesion between the structure 30 and the log slice 20, that is, the two.

This adhesion enhancing means forms a surface having a viscous force, that is, a viscous surface.

The molten film 25 or the like may be formed on the back surface of the wood slice 20 rather than the surface of the structure 30. Therefore, the viscous surface 25 is interposed between the structure 30 and the wood slice 20 to enhance the adhesion between the structure 30 and the wood slice 20.

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 wood slice 20 can be more firmly attached to the structure 30.

Here, the viscous surface 25 may be formed not only by thermal fusion but also by injection as described later. In this case, it is preferable that the viscous surface 25 is formed on the back surface of the log slice 20.

Here, the structure 30 should be manufactured through injection or casting. For example, it may be a plastic construction for injection or a metal construction for casting or forging.

On the other hand, when the metal structure 30 is manufactured through casting, forging, or the like, it is preferable that the process of attaching the wood slice 20 is performed after the structure 30 is manufactured. Similarly, in the case of manufacturing the plastic material structure 30 through injection, the attaching process can be performed after the structure 30 is manufactured.

However, this attachment process can be performed simultaneously with the injection process. In other words, it is also possible to form the structure 30 through the insert injection process and attach the wood slice 20 to the structure.

Fig. 7 shows an example of attaching the wood slice 20 to the structure 30 through insert injection. Specifically, the insert injection process for attaching the wood slice 20 to the structure 30 may be similar to that illustrated and described in 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 from each other. In the lower part of FIG. 7, Respectively.

As shown in FIG. 7, in this embodiment, the insert injection process can be performed a plurality of times. Accordingly, the structure formed as the insert injection is performed may be formed at a plurality of portions 31 and 32. [

Specifically, the log slice 20 may be attached only to the planar portion 31 of the portable terminal structure. Therefore, in many cases, it is possible to prevent the wood slice 20 from being attached to the curved surface portion 32 of the outer periphery only at the central portion of the structure.

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

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

Next, an insert injection can be performed to form the outer periphery of the structure. The subsequent insert injection may be integrated with the previous structure 31 and may be formed to cover a part of the front face of the log slice 20. That is, it can be formed so as to cover the outer periphery of the wooden slice 20 while forming the outer angle 32 of the structure.

Therefore, basically, the back surface of the log slice 20 adheres to the structure 31, and the front outer surface of the log slice 20 is surrounded by the structure 32 and covered. Therefore, it becomes possible to make the log slice 20 more firmly attached to the structure.

Here, the following effects can also be expected in the insert injection process for a plurality of inserts. That is, it is also possible to perform the insert injection process through different materials or to perform the insert injection process so as to have different colors. Accordingly, it becomes possible to manufacture a portable terminal having various designs. Of course, it is also possible to more firmly couple the wood slice 20 with the portable terminal structure through a plurality of insert injection processes.

Further, the formation of the complicated structure 32 is facilitated. If a structure is constructed to enclose the internal components of the portable terminal, a complicated structure 32 may be required for connection with the internal components or other components. Therefore, it becomes possible to easily form the structures 31 and 32 by such a multiple insert injection process.

Then, materials having different strengths can be used. For example, the material to be reinforced can be different from the material to be reinforced, compared to the construction for combining with other structures or specifically to other parts. This not only reduces the cost of materials but also enhances the reliability of the product.

More specifically, it is possible to more easily form the battery cover of the portable terminal or the coupling means of the case due to the insert injection of the plurality of times.

As described above, the base structure 31 and the additional structure 32 are sequentially formed through a plurality of insert injections and become integral with each other. Here, the battery cover or case of the portable terminal may be configured to be combined with other portable terminal configurations.

For example, the battery cover of the portable terminal may be coupled to the case or the front cover of the portable terminal. Thus, these structures will have configurations to be combined with other configurations. Such a coupling arrangement may be a slot or a slot into which a hook or a hook is inserted. Further, it may be a structure such as a boss or the like in which a hole into which a screw is inserted is formed.

7 shows an example of such a coupling arrangement in which hooks 34 and bosses 35 are shown and more specifically hooks 34 are formed in attachment structure 32 and bosses 35 are attached to base structure 31 As shown in Fig.

The coupling structure may be formed on each of the base structure 31 and the auxiliary structure 32, or may be formed on the base structure 31 and the auxiliary structure 32, respectively. Here, the coupling structure further complicates the shape of the structure 30. Therefore, it may be preferable to separately form such a coupling structure. Thus, the coupling structures, such as hooks and bosses, may be referred to as additional structures.

Therefore, the insert force of the wood slice and the structure can be increased through a plurality of injection inserts, and it becomes possible to easily form a coupling structure such as a hook or a boss.

After the wood slice 20 is attached to the portable terminal structures 31 and 32 as described with reference to FIGS. 6 and 7, a finishing process for the entire surface of the wood slice can 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 may be formed on the front surface of the portable terminal, but a front case or a cover of the portable terminal may be formed to have a bezel portion. Therefore, the wood slice can be attached to the bezel portion as described above.

As a result, it is possible to form a solid wood pattern on the front surface as well as the front surface of the portable terminal.

In addition, it is possible to form a solid wood pattern on a portable terminal having an input key or a keypad, not a touch screen type portable terminal.

8 shows a cross-sectional view of a part of the portable terminal keypad. Here, the structure corresponding to the structure of the portable terminal described above is the key input unit 60 and may be made of silicon or the like. The wood slice 20 can be attached to the front surface of the key input section by the above-described various methods, and the front surface of the wood slice can be surface treated or finished by various methods described above.

On the other hand, the specific keypad may be formed so that light in the interior is transmitted to the outside. That is, when a particular key is selected, light may be emitted through a window of a particular key to indicate it.

Therefore, in order to realize this, a hole 22 may be formed in the log slice. That is, holes can be formed through the hole forming process. In addition, a window 21 may be formed in the hole 22 to form an optical path so that light can be transmitted to the outside without scattering light.

The window 21 may be made of a transparent material, for example, a methacrylate resin (PMMA). That is, it is possible to integrally form the slice on the slice of the window 21 through insert injection, or to force the window into the hole. However, it may 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 of the wood slice can be performed. For example, a transparent film may be attached to the entire surface of the wood slice, or a coating film 40 may be formed on the entire surface of the wood slice.

The above 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 key of a keyboard. The present invention can also be applied to an external case for protecting the portable terminal.

Therefore, it is possible to form a beautiful design by applying the actual wood pattern to various portable devices, and it is possible to satisfy various design desires of the user. In addition, it is possible to provide a portable device which is easy to use by preventing the volume of the portable device from becoming large in order to implement the actual wood pattern.

20: wood slice 30: portable terminal structure
40: coating film (coating film) 60: key input section

Claims (14)

delete delete delete delete delete delete A portable terminal having a battery cover or a case that forms an appearance,
The battery cover or case may include:
A structure formed of a plastic material; And
Comprising a wood slice produced through compression molding or a wood impregnated with a synthetic resin and having a front surface and a back surface subjected to a surface treatment process and attached to the front surface of the structure,
Wherein the back surface of the slab slice includes a step for enhancing the attachment area with the structure. 8. The method of claim 7,
When the structure includes a plastic material,
Wherein the wood slice is attached to the structure by insert injection. 9. The method of claim 8,
The structure comprises:
A base structure to which a back surface of the log slice is attached and formed at the same time by insert injection; And
And an additional structure coupled to the base structure by further insert injection after the base structure is formed. 8. The method of claim 7,
Wherein a viscous surface is interposed between the back surface of the wood slice and the structure to increase the adhesion between the back surface and the structure. 8. The method of claim 7,
Stacking on the front of the wood slice? Further comprising a coating layer on the surface of the base material. 8. The method of claim 7,
Wherein the battery or the case includes a curved surface,
Wherein the wood slice has a curved surface corresponding to a curved surface of the battery or the case. delete 8. The method of claim 7,
Wherein the log slice further comprises characters or shapes printed on the front surface.

Images