JP2005305649A - Housing composed of compressed wood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a housing composed of compressed wood capable of adsorbing an offensive smell generated from a holding object of an electronic part or the like. <P>SOLUTION: The hausing 10 is constituted so as to holed an electronic part in the space part 11 surrounded by a front panel 12 and a rear panel 13 and a carbonized part 30 having groove parts is formed to the opposed inner surfaces of the space part 11 in the front and rear panels 12 and 13. Therefore, the offensive smell generated from the electronic part can be adsorbe by the carbonized part 30 to reduce or prevent the outflow of the offensive smell to the outside of the housing 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a casing using compressed wood, and more particularly to a casing made of compressed wood that forms a holding space for holding an electronic device or other arbitrary object in a space surrounded by the compressed wood .

  Conventionally, light metal (for example, aluminum, stainless steel, titanium, magnesium) and synthetic resin (for example, ABS, polycarbonate, acrylic) are mainly used as a material for a housing of an electronic device (for example, a digital camera, a mobile phone, an IC recorder). It was used for. However, when such a casing is evaluated as an exterior material, there is almost no individual difference because there is almost no individual difference, and there is a drawback that the design is impaired by causing scratches or discoloration during long-term use.

  Therefore, the inventor of the present application has focused on constructing the casing using wood. This is because wood has various grain, so that it can give an appropriate individual difference, and even when used for a long period of time, the color of the surface can be changed to improve the design. Because. Thus, when using wood as a housing | casing, it is possible that housing | casing rigidity falls compared with the case where a light metal and a synthetic resin are utilized. Although it is conceivable to increase the thickness of the casing in order to compensate for this decrease in rigidity, it is not suitable for a casing of an electronic device that is particularly required to be downsized.

  Here, conventionally, a processing method for increasing the strength of the wood by compressing it has been proposed. In this method, wood is softened by water absorption, compressed in a state of being fixed in a predetermined shape, and sliced in the compression direction to obtain a plate-like primary fixed product. Then, the primary fixed product is molded into a molded product having a predetermined three-dimensional shape while absorbing water by heating, and the final product is formed by fixing the shape of the molded product (for example, see Patent Document 1). Alternatively, a method of compressing and fixing wood in a softened state is known (see, for example, Patent Document 2). Therefore, if these methods are used, there is a possibility that the strength of the wood can be improved without causing the problem of increasing the thickness.

Japanese Patent No. 3078452 JP-A-11-77619

  However, even if the strength problem can be solved, other new problems may arise. That is, in general, in a small electronic device, since the useless space inside the housing is reduced as much as possible, the ratio of electronic components to the internal space of the housing tends to increase. Therefore, the temperature change inside the housing due to heat dissipation from the electronic components becomes relatively large.Accordingly, the odor is emitted from the electronic components and the like to fill the inside of the housing, and as a result, outside the housing. There was a possibility that the user would feel uncomfortable.

This invention is made | formed in view of the above, Comprising: It aims at providing the housing | casing by compressed wood which can adsorb | suck etc. the odor emitted from holding | maintenance objects, such as an electronic component.

In order to solve the above-described problems and achieve the object, the present invention according to claim 1 is a housing for holding a predetermined holding object in a space surrounded by compressed wood, The carbonized part which has an uneven | corrugated | grooved part was formed in the inner surface facing the said space part in compressed wood, It is characterized by the above-mentioned.

  In addition, the present invention described in claim 2 is characterized in that, in the present invention described in claim 1, the concave portion of the uneven portion is formed in a groove shape or a hole shape.

  In addition, the present invention described in claim 3 is characterized in that, in the present invention described in claim 1 or 2, the uneven portion has a second uneven portion smaller than the uneven portion.

  Moreover, the present invention according to claim 4 is characterized in that, in the present invention according to any one of claims 1 to 3, the compressed wood contains an insect repellent component.

  According to the case made of compressed wood according to the present invention, the odor generated from the object to be held such as an electronic component is adsorbed by the carbonized portion, and the effect of reducing or preventing the outflow of the odor to the outside of the case can be achieved. In particular, the surface area of the carbonized portion can be increased by the concavo-convex portion, and the adsorption performance can be improved.

  Moreover, according to the housing | casing by the compressed wood which concerns on this invention, there exists an effect that the surface area of a carbonization part can be increased by the groove-shaped or hole-shaped recessed part, and adsorption | suction performance can be improved.

  Moreover, according to the housing | casing by the compressed wood which concerns on this invention, there exists an effect that the surface area of a carbonization part can further be increased by the 2nd uneven | corrugated | grooved part, and adsorption | suction performance can be improved further.

  Further, according to the case of the compressed wood according to the present invention, in addition to the insect repellent by the carbonized portion, the non-carbonized portion is also protected by the insect repellent component, so that the case can be made into an insect repellent structure as a whole, and the long term There is an effect that it is possible to construct a casing that is not eroded by insects during use.

Hereinafter, the best mode for carrying out a casing made of compressed wood according to the present invention will be described in detail with reference to the drawings. [I] First, the basic concept of the present invention will be described, then [II] each embodiment of the present invention will be described, and [III] Finally, modifications to each embodiment of the present invention will be described.

[I] Basic concept of the present invention First, the basic concept of the present invention will be described. The present invention relates to a housing structure for holding a predetermined holding object in a space surrounded by compressed wood. Here, the number and the shape of the compressed wood constituting the casing are arbitrary, and the holding target arranged inside the casing is also arbitrary. In each of the following embodiments, an example will be described in which a casing for holding an electronic component for a digital camera is configured by two pieces of compressed wood.

  And this invention makes it one of the characteristics to form a carbonization part in the inner surface of such compressed wood. This carbonized part is porous and adsorbs odor efficiently. Therefore, the odor generated from the object to be held (particularly electronic parts such as a capacitor and a transformer that becomes relatively high temperature) can be adsorbed by the carbonized portion, and the outflow of the odor to the outside of the housing can be reduced or prevented.

  Further, according to the present invention, it is one of the features of the present invention that an uneven portion is provided in the carbonized portion. This uneven part increases the surface area of the carbonized part and improves its adsorptivity. The specific shape of the concavo-convex portion is arbitrary. For example, the concave portion can be formed in a groove shape or a hole shape.

[II] Each Example of the Present Invention Next, each example of a casing made of compressed wood according to the present invention will be described. However, the present invention is not limited to the embodiments. First, Example 1 will be described. The casing made of compressed wood according to the first embodiment is mainly characterized in that the concave portion includes a carbonized portion having an uneven portion formed in a groove shape, and that the compressed wood contains an insect repellent component. And

[Outline of electronic equipment]
FIG. 1 is a perspective view of an electronic apparatus using a casing made of compressed wood according to the first embodiment. In FIG. 1, an electronic device 1 is a digital camera and includes a housing 10 and an electronic unit 20. The housing 10 accommodates the electronic unit 20 to be held in a space portion 11 (not shown in FIG. 1) formed therein, and holds the electronic unit 20 integrally and Protect from the outside. Furthermore, the housing 10 functions as an exterior material of the electronic device 1 by exposing the outer surface thereof to the outside.

  The electronic unit 20 achieves a required electronic function of the electronic device 1, and includes, for example, an imaging lens 21, a shutter button 22, a liquid crystal monitor, an imaging device, driving circuits for various devices, and a connection terminal to an external device. (Only the imaging lens 21 and the shutter button 22 of the electronic unit 20 are shown in FIG. 1).

  In the following description, as indicated by an arrow in FIG. 1, the direction X along the length of the electronic device 1 is the longitudinal direction, and the direction Y along the short side of the electronic device 1 is perpendicular to the longitudinal direction. The thickness direction is a direction Z perpendicular to the short direction, the long direction and the short direction. Further, the longitudinal dimension is defined as the longitudinal dimension, the lateral dimension is defined as the short dimension, and the thickness dimension is defined as the thickness.

[Case structure]
Next, a specific configuration of the housing 10 will be described. 2 is an exploded perspective view of the electronic device of FIG. 1 (the electronic part is omitted), and FIG. 3 is a cross-sectional view of the electronic device of FIG. As illustrated in FIGS. 2 and 3, the housing 10 is configured by combining compressed wood with each other. Specifically, the housing 10 is configured by combining a front panel 12 and a rear panel 13 which are a pair of compressed wood. Each of the front panel 12 and the rear panel 13 is integrally provided with flat main surface portions 12a and 13a and side surface portions 12b to 12e and 13b to 13e formed on the peripheral edges of the main surface portions 12a and 13a.

  The front panel 12 and the rear panel 13 are formed and processed into a shape corresponding to a holding target held inside. That is, the front panel 12 has a lens hole 14 for exposing the imaging lens 21 to the outside, and the rear panel 13 has a monitor hole 15 for exposing a liquid crystal monitor. Each of the front panel 12 and the rear panel 13 has a shutter hole 16 for exposing the shutter button 22 and a terminal hole 17 for allowing connection of an external device to the connection terminal.

[Outline of carbonization part]
Here, as illustrated in FIGS. 2 and 3, the inner surface 12 a ′ of the main surface portion 12 a of the front panel 12 and the inner surface 13 a ′ of the main surface portion 13 a of the rear panel 13 are provided with a carbonized portion 30 (claims). Corresponding to the “carbonized part” in FIG. The carbonized portion 30 is generally formed by heating the inner surfaces 12a ′ and 13a ′ to carbonize, and efficiently adsorbs odor as a result of carbonization. Therefore, the carbonization unit 30 absorbs odors generated from the electronic unit 20 (particularly, electronic components such as capacitors and transformers that are relatively hot) and reduces or prevents the odor from flowing out of the housing 10. Although the thickness of this carbonization part 30 is arbitrary, for example, it determines so that the housing | casing 10 can fully maintain a required intensity | strength and can fully adsorb | suck an odor.

[Details of carbonization part]
Next, the carbonization part 30 is demonstrated in detail. FIG. 4 shows an enlarged perspective view around the carbonized portion. In addition, since the carbonized part 30 of the main surface part 12a and the carbonized part 30 of the main surface part 13a can be formed substantially in the same manner, only the carbonized part 30 of the main surface part 12a will be described below. As illustrated in FIG. 4, the carbonized portion 30 has a large number of groove portions 31 (corresponding to “uneven portions” and “concave portions” in the claims). These groove portions 31 increase the surface area of the carbonized portion 30 and improve the adsorptivity thereof, and a plurality of the groove portions 31 are formed along the short side direction of the main surface portion 12a as illustrated in FIGS.

  The groove 31 may be formed in any direction, for example, may be formed along the longitudinal direction of the main surface part 12a, or may be formed in a plurality of different directions. Moreover, although the formation number and formation density of the groove part 31 are arbitrary, since the adsorptivity increases, it is preferable that the formation density is high. Furthermore, the specific shape of each of the groove portions 31 is arbitrary. For example, as illustrated in FIG. 4, the groove portion 31 has a vertical cross-sectional shape (the cross-sectional shape shown on the front side of FIG. 4), and the inner surface 12a. Is formed in a shape that becomes wider as it reaches the space 11. More specifically, the groove part 31 is formed so that the longitudinal cross-sectional shape is substantially V-shaped. Thus, when the longitudinal cross-sectional shape of the groove part 31 is formed in substantially V shape, there exists an advantage that shaping | molding is still easier. Details of this molding will be described later.

[Formation method of front panel and rear panel]
Next, a method for forming the front panel 12 and the rear panel 13 will be described. Since the front panel 12 and the rear panel 13 can be formed in the same manner, a method for forming the front panel 12 will be described below. FIG. 5 is a perspective view illustrating the shaping of the wood according to the first embodiment. As illustrated in FIG. 5, first, the wood 41 is formed from the uncompressed raw wood 40. The wood 41 integrally includes a main surface portion 12a and side surface portions 12b to 12e, and the main surface portion 12a and the side surface portions 12b to 12e are connected via a smooth curved surface.

FIG. 6 is a perspective view illustrating the wood compression process according to the first embodiment, and FIGS. 7 to 10 are longitudinal sectional views sequentially illustrating the wood compression processes according to the first embodiment. Schematically, as illustrated in FIG. 6, the wood 41 is pressed between the lower mold frame 50 and the upper mold frame 51, so that the main surface portion 12 a and the side surface portions 12 b to 12 e are integrally provided. A part panel 12 is formed.

  First, the shape of the wood 41 will be described. The wood 41 is shaped in a form in which a volume that is reduced by compression is added in advance. Specifically, as illustrated in FIG. 7, the main surface portion 12a has a thickness W1 to which a volume that is reduced by compression is added in advance, and the side surface portions 12b to 12e (in FIG. 7, only the side surface portions 12c and 12e are included). Are respectively shaped with a thickness W2 and a height T1 pre-added with a volume that decreases with compression. The entire shape is taken with a width H1. Further, the thickness W1 of the main surface portion is formed to be thicker than the thickness W2 of the side surface portion.

  Further, the curvature radius of the curved surface RO on the outer surface of the wood 41 and the curvature radius of the curved surface RA of the recess 50a of the lower mold 50 facing the curved surface RO are in a relationship of RO> RA. On the other hand, the curvature radius of the curved surface RI of the wood 41 and the curvature radius of the curved surface RB of the convex portion 51a of the upper mold frame 51 are in a relationship of RI> RB. Further, as illustrated in FIG. 8, these mutual spaces in a state where the lower mold frame 50 and the upper mold frame 51 are combined form the shape of the front panel 12 after the wood 41 is compressed.

Here, as illustrated in FIGS. 7 to 9 , the convex portion 51 b is integrally formed on the surface of the convex portion 51 a of the upper mold 51 that faces the wood . The convex portion 51b is formed in a substantially V-shape as shown in the drawing at a position and shape corresponding to the groove portion 31 (not shown in FIG. 7) of the carbonized portion 30 described above.

  The upper mold 51 is provided with a heating unit 52. The heating part 52 is a heating means for forming the carbonized part 30 by heating the wood 41 through the upper mold 51, and is provided at a position corresponding to the carbonized part 30 inside the upper mold 51. It has been.

[Specific Examples of Forming Method of Front Panel and Rear Panel]
Next, an example of a specific molding method will be described. First, as illustrated in FIG. 7, the wood 41 is disposed between the lower mold frame 50 and the upper mold frame 51. At the same time, the wood 41 is placed in a high-temperature and high-pressure steam atmosphere for a predetermined time, so that moisture is excessively absorbed and softened. Next, as illustrated in FIG. 8, the upper mold 51 is fitted into the lower mold 50 to compress the wood 41. By this step, the groove 31 can be formed on the inner surface of the wood 41. Then, the wood 41 is left for a predetermined time with a compressive force applied. Then, the high-temperature and high-pressure steam atmosphere is solved.

Thereafter, as illustrated in FIG. 9, the carbonized portion 30 is formed on the inner surface of the wood 41 by heating the wood 41 with the heating unit 52 . Although the heating temperature in this case is arbitrary, since it is known that the adsorption performance of the carbonization part 30 changes according to temperature, it is the temperature (for example, 600-800 degreeC) which can obtain the highest adsorption performance. It is preferable to heat with.

  After forming the carbonized portion 30 in this manner, the upper mold frame 51 is separated from the lower mold frame 50, and the formed front panel 12 is taken out as illustrated in FIG. This completes the formation of the front panel 12. The front panel 12 thus taken out is compressed from the main surface portion 12a to the side surface portions 12b to 12e to substantially uniform thicknesses W1 'and W2', and the side surface portions 12b to 12e are compressed to the height T1 '. The The front panel 12 is compressed to a width H1 ′ as a whole. Since the front panel 12 thus compression-molded increases the wood fiber density, the entire panel 12 has high strength.

  Here, as described above, the groove portion 31 is formed in a substantially V shape, and the convex portion 51b of the upper mold frame 51 is formed in a substantially V shape corresponding to the groove portion 31. The groove portion 31 can be formed by molding in one direction. That is, the groove 31 is formed by simply compressing the wood 41 in one direction (downward in the above example) by the upper mold 51, and further, the upper mold 51 is moved in one direction (in the above example from the front panel 12). They can be easily separated by simply pulling them upward. Therefore, the housing 10 can be easily formed.

[Insect repellent]
Next, the insect repellent function of the compressed wood will be described. The compressed wood having the above-described characteristics contains an insect repellent component. As this insect repellent component, for example, any known insect repellent component such as hinokitiol can be employed. A specific method for incorporating such an insect repellent component into the compressed wood is arbitrary. For example, when the compressed wood is formed from cocoons and hiba, it is not necessary to artificially contain the insect repellents because these moss and hiba contain natural insect repellents. In addition, when forming compressed wood from wood that does not contain insect repellent components, the insect repellent can be obtained by immersing the wood in a solution containing an insect repellent for a certain period of time and pressing as necessary before the compression step. Can be impregnated into the wood.

  Thus, when the compressed wood containing an insect repellent component is used, not only the insect repellent effect is improved by the insect repellent component but also a synergistic effect with the carbonized portion 30 can be obtained. That is, when compressed wood that does not contain insect repellent components is used, insects are not attached to the carbonized portion 30, but insects may be attached to other portions. Can occur. On the other hand, when compressed wood containing an insect repellent component is used, no insects are attached to the carbonized portion 30, and no insects are attached to the other portions due to the effect of the insect repellent component. As described above, the housing 10 can be configured so as not to be eroded by insects even when used for a long time.

Thus , according to the case 10 made of compressed wood according to the first embodiment, the odor generated from the electronic unit 20 can be adsorbed by the carbonization unit 30, and the outflow of the odor to the outside of the case 10 can be reduced or prevented. In particular, the groove portion 31 can increase the surface area of the carbonized portion 30 and improve the adsorption performance. Furthermore, the casing 10 can be made insect-proof as a whole, and the casing 10 that is not subject to erosion by insects even when used for a long period of time can be configured.

Next, the housing | casing by the compressed wood which concerns on Example 2 is demonstrated . The casing made of compressed wood according to the second embodiment is mainly characterized in that the concave portion includes a carbonized portion having a concavo-convex portion formed in a hole shape, and that the compressed wood contains an insect repellent component. And The structure and method that are not particularly described are the same as those in the first embodiment described above, and the same components are described with the same reference numerals.

[Details of carbonization part]
FIG. 11 is an exploded perspective view of an electronic apparatus using a casing made of compressed wood according to the second embodiment (the electronic unit is omitted). In the second embodiment, the housing 60 includes a front panel 61 and a rear panel 62. The front panel 61 includes a main surface portion 61a and side surface portions 61b to 61e, and the rear panel 62 includes a main surface portion 62a and side surface portions 62b to 62e.

  Here, a carbonized portion 70 (corresponding to “carbonized portion” in the claims) is formed on an inner surface 61a ′ (not shown) of the main surface portion 61a and an inner surface 62a ′ of the main surface portion 62a. In addition, since the carbonized part 70 of the main surface part 61a and the carbonized part 70 of the main surface part 62a can be formed in substantially the same manner, only the carbonized part 70 of the main surface part 61a will be described below.

  FIG. 12 shows an enlarged perspective view around the carbonized portion. As illustrated in FIG. 12, the carbonized portion 70 is formed with a large number of holes 71 (corresponding to “uneven portions” and “concave portions” in the claims). These hole portions 71 increase the surface area of the carbonized portion 70 and improve its adsorptivity. The formation positions of the hole portions 71 are arbitrary. For example, the plurality of hole portions 71 can be arranged in a matrix along the longitudinal direction and the short direction of the main surface portion 61a. In particular, in the second embodiment, as illustrated in FIG. 12, the hole portions 71 of each row are alternately arranged at a distance L from each other, thereby reducing the mutual interval of the hole portions 71 and reducing the overall density. Has improved.

  Next, a specific shape of each hole 71 will be described. FIG. 13 is an enlarged perspective view of the hole. As illustrated in FIG. 13, the hole 71 in the second embodiment has a shape in which the vertical cross-sectional shape becomes wider as it reaches the opening side, and thus can be formed by die cutting in one direction. In addition, by forming the hole portion 71 in a conical shape instead of a pyramid shape, it is possible to avoid stress concentration in a specific portion around the hole portion 71 and maintain the strength of the compressed wood. The apex angle and the width of the bottom surface of the conical hole portion 71 are arbitrary. For example, by reducing the bottom surface of each hole portion 71 as much as possible, the number of formation of the hole portions 71 is increased, and the carbonization portion 70 The surface area can be improved.

  Here, a plurality of groove portions 72 (corresponding to “second concavo-convex portions” in the claims) smaller than the hole portion 71 are formed in the hole portion 71. The plurality of groove portions 72 are formed inside the hole portion 71 so as to reach the apex from the bottom surface of the hole portion 71, thereby increasing the surface area of the hole portion 71, and as a result, the entire carbonized portion 70. The surface area increases. As long as such a function is exhibited, the specific shape of the groove 72 can be arbitrarily determined. In particular, the groove portion 72 in the second embodiment, like the hole portion 71, is formed in a shape whose width is increased as it reaches the opening side, and therefore can be formed by die cutting in one direction.

[Formation method of front panel and rear panel]
Next, a method for forming the front panel 61 and the rear panel 62 will be described. Since the front panel 61 and the rear panel 62 can be formed in the same manner, a method for forming the front panel 61 will be described below. 14 to 16 are enlarged vertical cross-sectional views sequentially showing each compression process of wood according to the second embodiment.

  Here, as illustrated in FIGS. 14 to 16, a convex portion 81 is integrally formed on the molding surface of the upper mold frame 80. The convex portion 81 is formed in a position and shape corresponding to the hole portion 71 and the groove portion 72 (not shown in FIGS. 14 to 16) of the carbonized portion 70 described above. Then, as illustrated in FIG. 14, the wood 41 is disposed between the lower mold 50 (not shown in FIGS. 14 to 16) and the upper mold 80. At the same time, the wood 41 is placed in a high-temperature and high-pressure steam atmosphere for a predetermined time, so that moisture is excessively absorbed and softened.

Next, as illustrated in FIG. 15, the upper mold 80 is fitted into the lower mold 50 to compress the wood 41 . Through this process, the hole 71 and the groove 72 can be formed on the inner surface of the wood 41. Then, the wood 41 is left for a predetermined time with a compressive force applied. Then, after releasing the high-temperature and high-pressure steam atmosphere, as illustrated in FIG. 16, the heating unit 52 is heated to heat the inner surface of the wood 41 through the upper mold 80, and the carbonized portion 70 is formed on the inner surface. Form. After the carbonized portion 70 is formed in this way, the upper mold frame 80 is separated from the lower mold frame 50, and the formed front panel 61 is taken out. This completes the formation of the front panel 61.

  Here, as described above, the hole 71 is formed in a shape that becomes wider as it reaches the opening side, and the convex portion 81 of the upper mold frame 80 is formed in a shape corresponding to the hole 71. The hole 71 can be formed by molding in one direction as described. Further, since the groove portion 72 is formed in a substantially V shape and the convex portion 81 of the upper mold frame 80 has a shape corresponding to the groove portion 72, the groove portion 72 is formed by molding in one direction as described above. it can. In addition, the insect repellent component is contained in the front panel 61 and the rear panel 62 according to the second embodiment as in the first embodiment.

As described above, according to the casing made of compressed wood according to the second embodiment, the odor generated from the electronic unit 20 can be adsorbed by the carbonization unit 70, and the outflow of the odor to the outside of the casing 60 can be prevented. In particular, the surface area of the carbonized portion 70 can be increased by the hole 71, and the adsorption performance can be improved. Further, the surface area of the carbonized portion 70 can be further increased by the groove portion 72 formed in the hole portion 71, and the adsorption performance can be further improved. Furthermore, the housing 60 can be protected as a whole, and the housing 60 that is not eroded by insects even when used for a long period of time can be configured.

[III] Modifications to Embodiments of the Present Invention Each embodiment of the present invention has been described above, but the specific configuration and method of the present invention are within the scope of the technical idea of each invention described in the claims. It can be arbitrarily modified and improved within. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. In some cases, only some of the described problems can be solved, or only some of the described effects can be achieved. For example, even when the odor cannot be adsorbed 100% and a part of the odor flows out of the casings 10 and 60, the problem of the present invention is as long as the adsorption effect is improved as compared with the conventional casing. It has been resolved.

(About electronic devices)
In addition, the electronic device 1 is not limited to the digital camera, and may be configured as a mobile phone, an IC recorder, a PDA, a mobile TV, a mobile radio, a remote controller for various home appliances, and the like.

(About compressed wood)
Moreover, the number of constituents of the compressed wood is arbitrary, and, for example, 2 to 4 compressed woods can be combined with each other. Moreover, the shape of the compressed wood and the shape of the casings 10 and 60 configured by combining the compressed woods are arbitrary. For example, the casings 10 and 60 may be configured in a cylindrical shape or an egg shape. Moreover, the shaping | molding method of wood compression is not limited to the method demonstrated above, For example, the side parts 12b-12e, 13b-13e, 61b-61e, 62b are pressed by pressing the timber 41 cut out in flat form with a mold. The compression may be performed at the same time as ˜62e is started. Or the compression direction with respect to the timber 41 can also be made into directions other than having demonstrated, and compression can also be performed from several compression directions.

(About carbonization part)
In each embodiment, the carbonized portions 30 and 70 are formed only on a part of the inner surfaces 12a ′, 13a ′, 61a ′, and 62a ′, but may be formed on the entire surface. Or when there exists the holding | maintenance object which emits an odor especially, you may form only in the vicinity of such a holding | maintenance object. Further, the outer surface of the housings 10 and 60, for example, the vicinity of the output hole of the speaker of the mobile phone housing may be carbonized to absorb bad breath emitted from the caller. Alternatively, when the odor generated inside the housings 10 and 60 mainly rises upward, the carbonized portions 30 and 70 may be formed only on the upper surfaces inside the housings 10 and 60.

(About uneven parts)
Moreover, the specific shape of the uneven | corrugated | grooved part provided in the carbonization parts 30 and 70 can take a various shape besides having illustrated in each Example. That is, the shape of the concavo-convex portion may be at least a shape that can increase the surface area of the carbonized portions 30 and 70, and more preferably a shape that can be formed by die cutting in one direction. For example, the groove 31 shown in the first embodiment and the hole 71 shown in the second embodiment may be mixed on the same surface. In this case, the surface area of the surface where the hole 71 is not formed. Can be increased by the groove 31. Alternatively, as illustrated in the enlarged vertical sectional view of the carbonized portion in FIG. 17, the vertical cross-sectional shape of the concavo-convex portion 90 may be a substantially rectangular shape, and even in this case, the concavo-convex portion 90 is formed by molding in one direction. it can.

(About the 2nd uneven part)
In addition, the specific shape of the second uneven portion provided in the uneven portion may take various shapes other than those exemplified in each embodiment. That is, the shape of the second concavo-convex portion may be any shape that can increase the surface area of the carbonized portions 30 and 70 at least as in the shape of the concavo-convex portion, and more preferably can be formed by die cutting in one direction. Any shape is acceptable. For example, as illustrated in the enlarged vertical sectional view of the carbonized portion in FIG. 18, the vertical cross-sectional shape of the uneven portion 91 is formed into a shape that becomes wider toward the opening side, and the vertical cross-sectional shape of the second uneven portion 92. May be formed in a substantially square shape.

(About manufacturing method)
The formation of the concavo-convex portion and the second concavo-convex portion may not be performed simultaneously with the compression step. For example, after the compression step, drilling with a drill or cutting with a cutting tool may be performed. Further, the timing of the carbonization step is not limited to after the compression step, and can be performed simultaneously with the compression step. For example, the wood 41 may be pressed by the upper mold 51 and heated by the heating unit 52 provided on the upper mold 51. In this case, manufacturing time can be shortened compared with the case where a carbonization process is performed after completion | finish of a compression process. However, when carbonization starts, the surface of the wood 41 becomes hard and may not be able to withstand the compressive force and may be damaged, so in such a case, as described in Example 1, It is preferable to perform a carbonization process after completion | finish of a compression process.

  Alternatively, the carbonization step can be performed using various means other than the heating unit 52 provided in the upper mold 51. For example, after pressing the wood 41 with the upper mold 51 and separating the upper mold 51 from the compressed wood, the inner surface of the compressed wood may be carbonized by pressing the heating portion against the inner surface of the compressed wood. Alternatively, after the upper mold 51 is separated from the compressed wood, the inner surface of the compressed wood may be irradiated with a laser by a laser device such as a pulse laser. In particular, carbonization using a laser as described above is preferable in that the shape and thickness of the carbonized portion can be more accurately controlled.

As described above, the case made of compressed wood according to the present invention is useful for adsorbing odors emitted from holding objects such as electronic components, and in particular, adsorbs odors efficiently and flows out of the case. It is suitable for reducing or preventing.

It is a perspective view of the electronic device using the housing | casing by the compressed wood which concerns on Example 1. FIG. It is a disassembled perspective view of the electronic device of FIG. It is AA arrow sectional drawing of the electronic device of FIG. It is an expansion perspective view around a carbonization part. It is a perspective view which shows the shaping of the wood which concerns on Example 1. FIG. It is a perspective view which shows the compression process of the timber which concerns on Example 1. FIG. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 1 one by one. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 1 one by one. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 1 one by one. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 1 one by one. It is a disassembled perspective view of the electronic device using the housing | casing by the compressed wood which concerns on Example 2. FIG. It is an expansion perspective view around a carbonization part. It is an expansion perspective view of a hole. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 2 sequentially. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 2 sequentially. It is a longitudinal cross-sectional view which shows each compression process of the wood which concerns on Example 2 sequentially. It is an expanded longitudinal cross-sectional view of the carbonization part which concerns on another Example. It is an expanded longitudinal cross-sectional view of the carbonization part which concerns on another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic device 10, 60 Case 11 Space part 12, 61 Front panel 12a, 13a, 61a, 62a Main surface part 12a ', 13a', 61a ', 62a' Inner surface 12b-12e, 13b-13e, 61b-61e, 62b to 62e Side face parts 13, 62 Rear panel 14 Lens hole 15 Monitor hole 16 Shutter hole 17 Terminal hole 20 Electronic part 21 Imaging lens 22 Shutter button 30, 70 Carbonized part 31 Groove part 40 Wood log 41 Wood 50 Lower mold frame 50a Recessed part 51, 80 Upper mold frame 51a Convex part 51b Convex part 52 Heating part 71 Hole part 72 Groove part 81 Convex part 90, 91, 92 Convex part

Claims (5)

A housing for holding a predetermined holding object in a space surrounded by compressed wood,
Forming a carbonized portion having a concavo-convex portion on the inner surface facing the space portion in the compressed wood,
A casing made of compressed wood. The concave portion in the uneven portion is formed in a groove shape or a hole shape,
The casing made of compressed wood according to claim 1. The uneven portion has a second uneven portion smaller than the uneven portion;
A casing made of compressed wood according to claim 1 or 2. The compressed wood contains an insect repellent component;
The housing | casing by the compressed wood as described in any one of Claims 1-3 characterized by these. A method for manufacturing a housing for holding a predetermined holding object in a space surrounded by compressed wood,
A compression step of forming the compressed wood having a concavo-convex surface corresponding to the concavo-convex portion by compressing the timber with a mold having the concavo-convex portion on the molding surface;
At the same time as the compression step or after the compression step, by heating the compressed wood, a carbonization step to form a carbonized portion in the compressed wood;
A method for manufacturing a casing made of compressed wood.

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