CN100430193C - Compressed wood product and electronic device exterior material - Google Patents
Compressed wood product and electronic device exterior material Download PDFInfo
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- CN100430193C CN100430193C CNB2005800019030A CN200580001903A CN100430193C CN 100430193 C CN100430193 C CN 100430193C CN B2005800019030 A CNB2005800019030 A CN B2005800019030A CN 200580001903 A CN200580001903 A CN 200580001903A CN 100430193 C CN100430193 C CN 100430193C
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Abstract
A compressed wood product includes a wood whose shape is taken while a volume decreased by compression is previously added, a direction intersecting a fiber direction (L) of the wood is set to a compression direction, and the wood is formed by being subjected to compressive force. For example, a wood (1-1) is obtained which includes a main plate portion (1a) in which a surface emerging in a thickness (W1) direction has a flat-grain surface and a side plate portion (1b) provided while rising from the main plate portion (1a). The shape of the main plate portion (1a) is taken with a thickness (W1) to which the volume decreased by the compression is previously added, and the shape of the side plate portion (1b) is taken with a thickness (W2) and a height (T1) to which the volume decreased by the compression is previously added. The direction (M) in which grains (G) are laminated and the direction intersecting the fiber direction (L) are set to the compression direction with respect to the wood (1-1), and the wood (1-1) is subjected to the compressive force.
Description
Technical field
The present invention relates to a kind of compressed wood product of compression wood and electronic device exterior material that comprises this compressed wood product of comprising.
The application is based on the No.2004-013237 of Japanese patent application formerly, No.2004-013238 and the No.2004-013239 that submitted on January 21st, 2004 and require its benefit of priority, incorporates its full content herein by reference into.
Background technology
Can comprise camera, mobile communication equipment (mainly being cellular phone), digital audio tape (IC recorder), PDA(Personal Digital Assistant), portable television, portable receiver in the example of portable electronic equipment of operation on hand and be used for the remote control of various household implements.Usually, because industrial mass-produced needs use synthetic resin (acrylonitrile-butadiene-styrene (ABS) (ABS), Merlon, propylene etc.) and light metal (aluminium, stainless steel, titanium, magnesium etc.) as portable electronic device exterior material.These synthetic resin and light metals that constitute exterior material are that target obtains suitable intensity simultaneously with industrial products, thereby do not have individual difference in appearance.In addition, in the synthetic resin and light metal that constitute exterior material, long-term use can produce the crack and fade.But, the value of electronic equipment is only damaged with fading in the crack.
Therefore, consider that the timber that can use as natural material is as exterior material.Because timber has various textures, so timber has individual difference and individual character.Although timber produces crack and color change in long-time the use usually, these cracks and color change become to making the user feel the unique feel and the texture of the timber of cordiality.
Yet,, the intensity of timber is worried to some extent when timber being carried out three-dimensional processing when being used for exterior material.Particularly, in the exterior material of making by timber, when requiring the intensity identical with synthetic resin and light metal, owing to need to increase the thickness of timber, so timber is not suitable for the exterior material of portable electronic equipment.On the other hand, in the exterior material of making by timber, when requiring the size identical,, less thick reduces owing to making intensity with the exterior material that forms by synthetic resin and light metal.Therefore, in the prior art, there is technology as described below, wherein obtains intensity by compression wood.
Known a kind of conventional method, wherein will compress and keep by softening timber by absorbing moisture with solid shape, then it is cut into slices to obtain a tabular approved product along compression direction, this approved product forms the formed product that has predetermined three-dimensional shape when being heated and absorbing, and with the fixed in shape of approved product to obtain secondary approved product (for example referring to Japan Patent No.3078452).
Known traditionally a kind of method is as wood materials is carried out three-dimensional method for processing, wherein will be in that to soften under the state of handling compressed wood materials temporary fixed, recover shape then to form (for example, referring to the flat No.11-77619 of Japanese Patent Application Laid-Open).
Yet the intensity of known timber changes according to the compression direction with respect to timber.That is, sometimes worry owing to compression is broken timber.Particularly, add man-hour, need the compression direction of consideration with respect to timber when timber is carried out three-dimensional.In above-mentioned prior art, at first along a certain compression direction compression wood, then along direction compression (extruding) timber that is different from aforementioned compression direction, thereby timber may break.
Consider above-mentioned situation, the object of the present invention is to provide a kind of compressed wood product and electronic device exterior material, its can be by considering in advance with respect to the compression direction of timber so that Wood shaping, thereby and carry out compression molding and improve strength of wood.
Summary of the invention
The compressed wood product of first scheme comprises according to the present invention: compression wood, this compression wood comprises compression main board and the compressed side plate portion that rises from the whole periphery of described compression main board, wherein this compression wood is made by the timber of the plate portion that comprises main board and rise from the whole periphery of described main board, described main board is to be shaped under the situation with the thickness that adds the volume that reduces by compression, described plate portion is to be shaped under the situation with the thickness that adds the volume that reduces by compression and height, and will be made as compression direction with the surface of described main board and the two direction of intersecting of machine direction of described timber, and by described main board is exerted pressure along thickness direction, described plate portion is exerted pressure and formed described compression wood along thickness direction and short transverse.
According to the present invention, because exert pressure to the timber that forms under the situation that adds the volume that reduces by compression in advance along the direction of intersecting with machine direction, so fibre density increases, this has given whole timber high strength.Therefore, can improve the intensity of compressed wood product by three-dimensional compression.
In alternative plan, the compression wood of the compressed wood product of first scheme also comprises the sweep of being located between main board and the plate portion according to the present invention, sweep is to be shaped under the situation that adds the volume that reduces by compression, and sweep is subjected to the pressure that pressure that the main board portion branch bears and side plate branch bear.
According to the present invention, because pressure is applied on the sweep along the stacked direction of timber striped or along grain direction, so fibre density increases, this has given sweep high strength.
In third party's case, according to the present invention first or the compressed wood product of alternative plan, described main board have the plain weave surface for the surface that occurs along thickness direction.
In cubic case, according to the present invention first or the described main board of the compressed wood product of alternative plan have line surface, footpath for the surface that occurs along thickness direction.。
In the 5th scheme, according to the present invention first or the described main board of the compressed wood product of alternative plan have the straight burr surface for the surface that occurs along thickness direction.
The compressed wood product of the 6th scheme comprises compression wood according to the present invention, this compression wood comprises compression main board and the compressed side plate portion that rises from the whole periphery of described compression main board, this compression wood has basic homogeneous thickness in described compression main board and described compressed side board office, wherein this compression wood is made by the timber of the plate portion that comprises main board and rise from the whole periphery of described main board, described main board is to be shaped under the situation with the width that adds the volume that reduces by compression, described plate portion is to be shaped under the situation with the thickness that adds the volume that reduces by compression, and will be made as compression direction along the surface of described main board and with direction that the machine direction of described timber is intersected, and by described main board broad ways is exerted pressure, described plate portion is exerted pressure and formed described compression wood along thickness direction.
In the 7th scheme, the described main board of the compressed wood product of the 6th scheme has line surface, footpath for the surface that occurs along thickness direction according to the present invention.
In the case of all directions, the described main board of the compressed wood product of the 6th scheme has the straight burr surface for the surface that occurs along thickness direction according to the present invention.
In the 9th scheme, the compressed wood product of the first or the 6th scheme is according to the present invention, the vertical machine direction along timber of timber after shaping.
According to the present invention, given intensity lower vertically on intensity, therefore can improve the intensity of compressed wood product.
The electronic device exterior material of the tenth scheme is by forming according to the described compressed wood product of arbitrary scheme in first to the tenth scheme according to the present invention.
According to the present invention, because electronic device exterior material is formed by above-mentioned compressed wood product, so but the required sufficient intensity of its electron gain device external material.
Description of drawings
Fig. 1 is the profile of expression electronic equipment, wherein is used as exterior material according to compressed wood product of the present invention;
Fig. 2 is the stereogram that expression forms compressed wood product according to the present invention;
Fig. 3 is the plane that expression forms compressed wood product according to the present invention;
Fig. 4 A to Fig. 4 C is the figure that is illustrated in the compression process in the first embodiment of the invention;
Fig. 5 A to Fig. 5 C is the figure that is illustrated in the compression process in the second embodiment of the invention;
Fig. 6 A to Fig. 6 C is the figure that is illustrated in the compression process in the third embodiment of the invention;
Fig. 7 A to Fig. 7 B is the figure that is illustrated in the compression process in the fourth embodiment of the invention;
Fig. 8 A to Fig. 8 B is the figure that is illustrated in the compression process in the fifth embodiment of the invention.
The specific embodiment
Describe the present invention with reference to the accompanying drawings in detail.
(first embodiment)
Fig. 1 is the profile of expression electronic equipment, wherein is used as exterior material according to compressed wood product of the present invention.Digital camera as the example of electronic equipment has been shown among Fig. 1.Digital camera has reinforced bulkhead 11 and the internal mechanism 12 in the exterior material 10 that is formed by compressed wood product.Digital camera also has the phase of getting camera lens 13 and LCD monitor 14, gets the outside that phase camera lens 13 and LCD monitor 14 are exposed on the external material 10.Internal mechanism 12 comprises getting for one and installs 12a such as CCD mutually, drives and get the drive circuit 12b, the drive circuit 12c that drives LCD monitor 14 that install 12a mutually, be used for the tape deck 12d of image recording media C and be connected to the splicing ear 12e of external personal computer.
Exterior material 10 comprises protecgulum 10a and bonnet 10b.In the main board of protecgulum 10a, make camera aperture 10c and make that getting phase camera lens 13 stretches out protecgulum 10a.Camera aperture 10c is made for corresponding with the outer shape of the retaining part that keeps getting phase camera lens 13.For example, when retaining part was cylindricality, camera aperture 10c is made for circle made retaining part stretch out protecgulum 10a.Hole 10d is set in the plate portion of protecgulum 10a makes image recording media C insert or extract out from hole 10d.Making rectangular window 10e in the main board of bonnet 10b makes LCD monitor 14 be exposed at the outside of bonnet 10b.Hole 10f is set in the plate portion of bonnet 10b makes the connection cable that is connected to splicing ear 12e insert or extract out from hole 10f.In addition, although not shown in the drawings,, button hole exposes the various action buttons that are used for the function digit camera in protecgulum 10a and bonnet 10b thereby being set.If desired, lid etc. can be set in button hole.
Fig. 2 is the stereogram that expression forms compressed wood product according to the present invention, and Fig. 3 is the plane that expression forms compressed wood product according to the present invention.As shown in Figure 2, make the compressed wood product that constitutes exterior material 10 by compression wood 1.Before compression wood 1, timber 1 is shaped by raw material 100.The example of raw material 100 comprises Japanese cypress, paulownia, teak, mahogany, Japanese cedar, pine and cherry.Timber 1 is a wooden unit, comprises the have reservation shape main board 1a of (being roughly rectangular shape among this first embodiment) and the plate portion 1b that is provided with from main board 1a periphery vertical lifting.Main board 1a forms the main board of protecgulum 10a or bonnet 10b, and plate portion 1b forms the plate portion of protecgulum 10a or bonnet 10b.In timber 1, main board 1a and plate portion 1b form with curved surface and are connected to each other.In timber 1, as shown in Figure 2, main board 1a is configured as along the machine direction L of raw material 100, particularly preferably is vertically being configured as along machine direction L of main board 1a.
As shown in Figure 3, the timber 1 that is shaped from raw material 100 has three kinds of forms, i.e. timber 1-1, timber 1-2 and timber 1-3.In timber 1-1, striped G is present in the thickness of slab of main board 1a with stratiform, and main board 1a is configured as along the surface that thickness direction presents and has the plain weave surface.In timber 1-2, striped G is present in the thickness of slab of main board 1a with the stratiform that tilts, and main board 1a is configured as and has line (edge grain) surface, footpath along the surface that thickness direction presents.In timber 1-3, striped G is present on the direction perpendicular to the thickness of slab of main board 1a with stratiform, and main board 1a is configured as along the surface that thickness direction presents and has the straight burr surface.
Fig. 4 is the figure that is illustrated in the compression process in the first embodiment of the invention.Fig. 4 represents that wherein main board 1a has the compression process of the timber 1-1 on plain weave surface.Timber 1-1 is shaped under the situation that adds the volume that reduces by compression in advance.Particularly, shown in Fig. 4 A, main board 1a is shaped under the situation with the thickness W1 that adds the volume that reduces by compression in advance.Plate portion 1b is shaped under the situation with the thickness W2 that adds the volume that reduces by compression in advance and height T1.Timber 1-1 is configured as has overall width H1.The thickness W1 of main board 1a forms bigger than the thickness W2 of plate portion 1b.Mid portion between main board 1a and plate portion 1b forms curved surface, makes the thickness W1 of main board 1a gradually become the thickness W2 of plate portion 1b.Plate portion 1b forms from main board 1a and rises outward-dippingly.In timber 1-1, Fig. 4 shows protecgulum 10a in the exterior material 10 that is formed by compressed wood product or the shape of bonnet 10b.Because the shape of protecgulum 10a and bonnet 10b is mutually the same, so omitted the accompanying drawing and the description of another shape.
Timber 1-1 is compressed between bottom mold framework A and trussell framework B.Shown in Fig. 4 A, bottom mold framework A has the concave surface corresponding to crooked outer surface (lower surface among Fig. 4), and plate portion 1b main board 1a from timber 1-1 in this crooked outer surface rises.The concave surface of bottom mold framework A has the shape that cooperates with the outer surface of timber 1-1.Has the relation of RO＞RA in the radius of curvature of the curved surface RO of timber 1-1 outer surface with radius of curvature at the curved surface RA relative at bottom mold framework A place with curved surface RO.On the other hand, trussell framework B has the convex surface corresponding to crooked inner surface (upper surface among Fig. 4), and plate portion 1b main board 1a from timber 1-1 in this crooked inner surface rises.The convex surface of trussell framework B has the shape that cooperates with the inner surface of timber 1-1.Has the relation of RI＞RB in the radius of curvature of the curved surface RI at timber 1-1 inner surface place with radius of curvature at the curved surface RB relative at trussell framework B place with curved surface RI.After with bottom mold framework A and trussell framework B combination, promptly after timber 1-1 is compressed, be formed on the shape (referring to Fig. 4 B) after the compression that space between the convex surface of the concave surface of bottom mold framework A and trussell framework B has timber 1-1.
For the timber 1-1 with said structure, bottom mold framework A and trussell framework B, at first timber 1-1 is placed in the water vapour atmosphere of HTHP, shown in Fig. 4 A.When timber 1-1 was placed in the water vapour atmosphere of HTHP the scheduled time, timber 1-1 was owing to taken in excess moisture softens.In the water vapour atmosphere of HTHP, timber 1-1 is arranged between bottom mold framework A and the trussell framework B, and timber 1-1 is located on the concave surface of bottom mold framework A.Here in timber 1-1, because main board 1a has the plain weave surface, thereby the stacked direction M of striped G is present on the vertical direction of Fig. 4, and machine direction L is along the depth direction of Fig. 4.
Then, shown in Fig. 4 B, by make trussell framework B near bottom mold framework A compression wood 1-1.That is, the convex surface with trussell framework B is assemblied in the concave surface of bottom mold framework A.In the timber 1-1 that is clipped between bottom mold framework A and the trussell framework B, pressure is applied on the main board 1a along thickness W1 direction (along the stacked direction M of texture G), and pressure also is applied on the main board 1a along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-1, pressure is applied on the plate portion 1b along thickness W2 direction (along the direction of texture G) and height T1 direction (direction that texture G is stacked), and pressure also is applied on the plate portion 1b along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-1, pressure is applied on the sweep 1c that connects main board 1a and plate portion 1b along the stacked direction M of texture G and along the direction of texture G, and pressure also is applied on the sweep 1c along intersecting the direction of (vertical) with machine direction L.Particularly, sweep 1c forms and makes the outward-dipping rising of plate portion 1b, and the radius of curvature of bottom mold framework A and trussell framework B has above-mentioned relation.Therefore, pressure upwards is applied to the outer surface of sweep 1c, and pressure is applied to inner surface downwards.Then, when timber 1-1 exerts pressure, timber 1-1 is being kept somewhere the scheduled time.
Finally, after timber 1-1 is kept somewhere the scheduled time, discharge high-temperature high-pressure steam atmosphere, trussell framework B and bottom mold framework A are separated, and take out compression wood 1-1, shown in Fig. 4 C.Among the compression wood 1-1 that takes out between bottom mold framework A and trussell framework B, timber 1-1 is compressed at main board 1a and plate portion 1b has basic homogeneous thickness W1 ' and W2 ' respectively.In compression wood 1-1, plate portion 1b is compressed into height T1 '.In compression wood 1-1, the sweep 1c that connects main board 1a and plate portion 1b is compressed into and makes texture G along inclined direction be out of shape.The width of compression wood 1-1 by compress slightly to H1 '.
Therefore, among the timber 1-1 that compresses in first embodiment, because pressure applies along intersecting the direction of (vertical) with machine direction L, so fibre density increases, this has given whole timber 1-1 high strength.In main board 1a and plate portion 1b, because pressure applies along the stacked direction M of texture G, so the hard fibre density of texture G increases, this has given main board 1a and plate portion 1b high strength.In the sweep 1c that connects main board 1a and plate portion 1b, because pressure tilts to apply, so texture G along inclined direction is out of shape and increases fibre density, this has given sweep 1c high strength.Timber 1-1 vertically is configured as along machine direction L, this given intensity lower vertically on high strength.As a result, can improve the intensity of compressed wood product (electronic device exterior material) by three-dimensional compression.
(second embodiment)
In the second following embodiment, omitted with first embodiment in the identical description of the described content of Fig. 1 to Fig. 3.
Fig. 5 is the figure that is illustrated in the compression process in the second embodiment of the invention.Fig. 5 represents that wherein main board 1a has the compression process of the timber 1-2 on line surface, footpath.Timber 1-2 is shaped under the situation that adds the volume that reduces by compression in advance.Particularly, shown in Fig. 5 A, main board 1a is shaped under the situation with the thickness W3 that adds the volume that reduces by compression in advance.Plate portion 1b is shaped under the situation with the thickness W4 that adds the volume that reduces by compression in advance and height T2.Timber 1-2 is configured as has overall width H2.The thickness W3 of main board 1a forms bigger than the thickness W4 of plate portion 1b.Mid portion between main board 1a and plate portion 1b forms curved surface, makes the thickness W3 of main board 1a gradually become the thickness W4 of plate portion 1b.Plate portion 1b forms from main board 1a and rises outward-dippingly.In timber 1-2, Fig. 5 shows protecgulum 10a in the exterior material 10 that is formed by compressed wood product or the shape of bonnet 10b.Because the shape of protecgulum 10a and bonnet 10b is mutually the same, so omitted the accompanying drawing and the description of another shape.
Timber 1-2 is compressed between bottom mold framework A and trussell framework B.Shown in Fig. 5 A, bottom mold framework A has the concave surface corresponding to crooked outer surface (lower surface among Fig. 5), and plate portion 1b main board 1a from timber 1-2 in this crooked outer surface rises.The concave surface of bottom mold framework A has the shape that cooperates with the outer surface of timber 1-2.Has the relation of RO＞RA in the radius of curvature of the curved surface RO of timber 1-2 outer surface with radius of curvature at the curved surface RA relative at bottom mold framework A place with curved surface RO.On the other hand, trussell framework B has the convex surface corresponding to crooked inner surface (upper surface among Fig. 5), and plate portion 1b main board 1a from timber 1-2 in this crooked inner surface rises.The convex surface of trussell framework B has the shape that cooperates with the inner surface of timber 1-2.Has the relation of RI＞RB in the radius of curvature of the curved surface RI at timber 1-2 inner surface place with radius of curvature at the curved surface RB relative at trussell framework B place with curved surface RI.After with bottom mold framework A and trussell framework B combination, promptly after timber 1-2 is compressed, be formed on the shape (referring to Fig. 5 B) after the compression that space between the convex surface of the concave surface of bottom mold framework A and trussell framework B has timber 1-2.
For the timber 1-2 with said structure, bottom mold framework A and trussell framework B, at first timber 1-2 is placed in the water vapour atmosphere of HTHP, shown in Fig. 5 A.When timber 1-2 was placed in the water vapour atmosphere of HTHP the scheduled time, timber 1-2 was owing to taken in excess moisture softens.In the water vapour atmosphere of HTHP, timber 1-2 is arranged between bottom mold framework A and the trussell framework B, and timber 1-2 is located on the concave surface of bottom mold framework A.Here in timber 1-2, because main board 1a has line surface, footpath, thereby the stacked direction M of texture G is present on the incline direction of Fig. 5, and machine direction L is along the depth direction of Fig. 5.
Then, shown in Fig. 5 B, by make trussell framework B near bottom mold framework A compression wood 1-2.That is, the convex surface with trussell framework B is assemblied in the concave surface of bottom mold framework A.In the timber 1-2 that is clipped between bottom mold framework A and the trussell framework B, pressure is applied on the main board 1a along thickness W3 direction (roughly along the stacked direction M of texture G), and pressure also is applied on the main board 1a along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-2, pressure is applied on the plate portion 1b along thickness W4 direction (roughly along the stacked direction M of texture G) and height T2 direction (roughly along texture G direction), and pressure also is applied on the plate portion 1b along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-2, pressure is applied on the sweep 1c (Fig. 5 left side) who connects main board 1a and plate portion 1b along the stacked direction M of texture G, and pressure is also along the direction of texture G and intersect the direction of (vertical) with machine direction L and be applied on another sweep 1c (Fig. 5 right side).Particularly, sweep 1c forms and makes the outward-dipping rising of plate portion 1b, and the radius of curvature of bottom mold framework A and trussell framework B has above-mentioned relation.Therefore, pressure upwards is applied to the outer surface of sweep 1c, and pressure is applied to inner surface downwards.Then, when timber 1-2 exerts pressure, timber 1-2 is being kept somewhere the scheduled time.
Finally, after timber 1-2 is kept somewhere the scheduled time, discharge high-temperature high-pressure steam atmosphere, trussell framework B and bottom mold framework A are separated, and take out compression wood 1-2, shown in Fig. 5 C.In the compression wood 1-2 that takes out, timber 1-2 is compressed at main board 1a and plate portion 1b has basic homogeneous thickness W3 ' and W4 ' respectively.In compression wood 1-2, plate portion 1b is compressed into height T2 '.In the sweep 1c of the connection main board 1a of compression wood 1-2 and plate portion 1b, a sweep 1c (Fig. 5 left side) is compressed into and makes that striped G is stacked, and another sweep 1c (Fig. 5 right side) is compressed into and makes striped G flexural deformation.The width of compression wood 1-2 by compress slightly to H2 '.
Therefore, in a second embodiment among Ya Suo the timber 1-2, because pressure applies along intersecting the direction of (vertical) with machine direction L, so fibre density increases, this has given whole timber 1-2 high strength.In main board 1a and plate portion 1b, because pressure applies along the stacked direction M of texture G, so the hard fibre density of texture G increases, this has given main board 1a and plate portion 1b high strength.In the sweep 1c that connects main board 1a and plate portion 1b, because pressure is applied on the sweep 1c (Fig. 5 left side) along the stacked direction M of texture G, so fibre density increases, this has given high strength.In addition, because another sweep 1c (Fig. 5 right side) is compressed into and makes striped G flexural deformation, so fibre density increases, this has given high strength.Timber 1-2 vertically is configured as along machine direction L, and this is along the low intensity of vertically having given of intensity.As a result, can improve the intensity of compressed wood product and electronic device exterior material by three-dimensional compression.
In a second embodiment, adopt the timber 1-2 of the main board 1a with line surface, footpath.Therefore, because compare the density of the texture G (fiber) that is presented among the main board 1a with first embodiment higher, thus improved the perspiration-absorptcharacteristics characteristics when timber 1-2 contacts with staff, thus portability improved, and texture G plays anti-skidding effect.In addition, because compare the density of the texture G that is presented among the main board 1a with first embodiment higher, further improved the outward appearance of timber.
(the 3rd embodiment)
In the 3rd following embodiment, omitted with first embodiment in the identical description of the described content of Fig. 1 to Fig. 3.
Fig. 6 is the figure that is illustrated in the compression process among the 3rd embodiment.Fig. 6 represents that wherein main board 1a has the compression process of the timber 1-3 on straight burr surface.Timber 1-3 is shaped under the situation that adds the volume that reduces by compression in advance.Particularly, as shown in Figure 6A, main board 1a is shaped under the situation with the thickness W5 that adds the volume that reduces by compression in advance.Plate portion 1b is shaped under the situation with the thickness W6 that adds the volume that reduces by compression in advance and height T3.Timber 1-3 is configured as has overall width H3.The thickness W5 of main board 1a forms bigger than the thickness W6 of plate portion 1b.Mid portion between main board 1a and plate portion 1b forms curved surface, makes the thickness W5 of main board 1a gradually become the thickness W6 of plate portion 1b.Plate portion 1b forms from main board 1a and rises outward-dippingly.In timber 1-3, Fig. 6 shows protecgulum 10a in the exterior material 10 that is formed by compressed wood product or the shape of bonnet 10b.Because the shape of protecgulum 10a and bonnet 10b is mutually the same, so omitted the accompanying drawing and the description of another shape.
Timber 1-3 is compressed between bottom mold framework A and trussell framework B.As shown in Figure 6A, bottom mold framework A has the concave surface corresponding to crooked outer surface (lower surface among Fig. 6), and plate portion 1b main board 1a from timber 1-3 in this crooked outer surface rises.The concave surface of bottom mold framework A has the shape that cooperates with the outer surface of timber 1-3.Has the relation of RO＞RA in the radius of curvature of the curved surface RO of timber 1-3 outer surface with radius of curvature at the curved surface RA relative at bottom mold framework A place with curved surface RO.On the other hand, trussell framework B has the convex surface corresponding to crooked inner surface (upper surface among Fig. 6), and plate portion 1b main board 1a from timber 1-3 in this crooked inner surface rises.The convex surface of trussell framework B has the shape that cooperates with the inner surface of timber 1-3.Has the relation of RI＞RB in the radius of curvature of the curved surface RI at timber 1-3 inner surface place with radius of curvature at the curved surface RB relative at trussell framework B place with curved surface RI.After with bottom mold framework A and trussell framework B combination, promptly after timber 1-3 is compressed, be formed on the shape (referring to Fig. 6 B) after the compression that space between the convex surface of the concave surface of bottom mold framework A and trussell framework B has timber 1-3.
For the timber 1-3 with said structure, bottom mold framework A and trussell framework B, at first timber 1-3 is placed in the water vapour atmosphere of HTHP, as shown in Figure 6A.When timber 1-3 was placed in the water vapour atmosphere of HTHP the scheduled time, timber 1-3 was owing to taken in excess moisture softens.In the water vapour atmosphere of HTHP, timber 1-3 is arranged between bottom mold framework A and the trussell framework B, and timber 1-3 is located on the concave surface of bottom mold framework A.Here in timber 1-3, because main board 1a has the straight burr surface, thereby the stacked direction M of texture G is present on the horizontal direction of Fig. 6, and machine direction L is along the depth direction of Fig. 6.
Then, shown in Fig. 6 B, by make trussell framework B near bottom mold framework A compression wood 1-3.That is, the convex surface with trussell framework B is assemblied in the concave surface of bottom mold framework A.In the timber 1-3 that is clipped between bottom mold framework A and the trussell framework B, pressure is applied on the main board 1a along thickness W5 direction (along the direction of texture G), and pressure also is applied on the main board 1a along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-3, pressure is applied on the plate portion 1b along thickness W6 direction (the direction M that texture G is stacked) and height T3 direction (along the direction of texture G), and pressure also is applied on the plate portion 1b along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-3, pressure is applied on the sweep 1c that connects main board 1a and plate portion 1b along the stacked direction M of texture G and along the direction of texture G, and pressure also is applied on the sweep 1c along intersecting the direction of (vertical) with machine direction L.Particularly, sweep 1c forms and makes the outward-dipping rising of plate portion 1b, and the radius of curvature of bottom mold framework A and trussell framework B has above-mentioned relation.Therefore, pressure upwards is applied to the outer surface of sweep 1c, and pressure is applied to inner surface downwards.Then, when timber 1-3 exerts pressure, timber 1-3 is being kept somewhere the scheduled time.
Finally, after timber 1-3 is kept somewhere the scheduled time, discharge high-temperature high-pressure steam atmosphere, trussell framework B and bottom mold framework A are separated, and take out compression wood 1-3, shown in Fig. 6 C.In the compression wood 1-3 that takes out, timber 1-3 is compressed at main board 1a and plate portion 1b place has basic homogeneous thickness W5 ' and W6 ' respectively.In compression wood 1-3, plate portion 1b is compressed into height T3 '.In compression wood 1-3, the sweep 1c that connects main board 1a and plate portion 1b is compressed into and makes that striped G is stacked.The width of compression wood 1-3 by compress slightly to H3 '.
Therefore, among the timber 1-3 that compresses in the 3rd embodiment, because pressure applies along intersecting the direction of (vertical) with machine direction L, so fibre density increases, this has given whole timber 1-3 high strength.Because main board 1a is compressed simultaneously in that striped is diastrophic, so ribbon is increased fibre density by harness, this has given main board 1a high strength.In plate portion 1b, because pressure applies along the stacked direction M of texture G, so the hard fibre density of texture G increases, this has given plate portion 1b high strength.In the sweep 1c that connects main board 1a and plate portion 1b, because pressure applies along the stacked direction M of texture G, so fibre density increases, this has given high strength.Timber 1-3 vertically is configured as along machine direction L, this intensity lower vertically on given high strength.As a result, can improve the intensity of compressed wood product and electronic device exterior material by three-dimensional compression.
In the 3rd embodiment, adopt the timber 1-3 of the main board 1a with straight burr surface.Therefore, because compare the density of the texture G (fiber) that is presented among the main board 1a with first embodiment or second embodiment higher, so has improved the perspiration-absorptcharacteristics characteristics when timber 1-3 contacts with staff, thereby improved portability, and texture G plays anti-skidding effect.In addition, because compare the density of the texture G that is presented among the main board 1a with first embodiment or second embodiment higher, so further improved the outward appearance of timber.
(the 4th embodiment)
In the 4th following embodiment, omitted with first embodiment in the identical description of the described content of Fig. 1 to Fig. 3.
Fig. 7 is the figure that is illustrated in the compression process among the 4th embodiment.Fig. 7 represents that wherein main board 1a has the compression process of the timber 1-3 on straight burr surface.Timber 1-3 is shaped under the situation that adds the volume that reduces by compression in advance.Particularly, shown in Fig. 7 A, plate portion 1b is shaped under the situation with the thickness W8 that adds the volume that reduces by compression in advance, and plate portion 1b has the height T4 that equates substantially with the compression back.Main board 1a has the thickness W7 that equates substantially with the compression back, and timber 1-3 is shaped under the situation with the width H4 that adds the cumulative volume that reduces by compression in advance.The thickness W8 of plate portion 1b forms bigger than the thickness W7 of main board 1a.Mid portion between main board 1a and plate portion 1b forms curved surface, makes the thickness W8 of plate portion 1b gradually become the thickness W7 of main board 1a.In timber 1-3, Fig. 7 shows protecgulum 10a in the exterior material 10 that is formed by compressed wood product or the shape of bonnet 10b.Because the shape of protecgulum 10a and bonnet 10b is mutually the same, so omitted the accompanying drawing and the description of another shape.
For timber 1-3, at first timber 1-3 is placed in the water vapour atmosphere of HTHP, shown in Fig. 7 A with said structure.When timber 1-3 was placed in the water vapour atmosphere of HTHP the scheduled time, timber 1-3 was owing to taken in excess moisture softens.Here in timber 1-3, because main board 1a has the straight burr surface, thereby the stacked direction M of texture G is present on the horizontal direction of Fig. 7, and machine direction L is along the depth direction of Fig. 7.
Then, compression wood 1-3.Here, compression direction is the arrow P direction shown in Fig. 7 B.Therefore, in timber 1-3, pressure is applied on the main board 1a along width H4 direction (the direction M that texture G is stacked), and pressure also is applied on the main board 1a along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-3, pressure is applied on the plate portion 1b along thickness W8 direction (the direction M that texture G is stacked), and pressure also is applied on the plate portion 1b along intersecting the direction of (vertical) with machine direction L.Then, when timber 1-3 exerts pressure, timber 1-3 is being kept somewhere the scheduled time.
Finally, after timber 1-3 is kept somewhere the scheduled time, discharge high-temperature high-pressure steam atmosphere, take out compression wood 1-3.In the compression wood 1-3 that takes out, timber 1-3 is compressed at main board 1a and plate portion 1b place has basic homogeneous thickness W7 ' and W8 ' respectively.In compression wood 1-3, the height T4 ' of height T4 before plate portion 1b is compressed into and equals substantially to compress.Compression wood 1-3 is compressed into width H4 '.
Therefore, among the timber 1-3 that compresses in the 4th embodiment, because pressure applies along intersecting the direction of (vertical) with machine direction L, so fibre density increases, this has given whole timber 1-3 high strength.Because along texture G stacked direction M compression main board 1a and plate portion 1b, so the hard fibre density of texture G increases, this has given main board 1a and plate portion 1b high strength.Timber 1-3 vertically is configured as along machine direction L, this intensity lower vertically on given intensity.As a result, can improve the intensity of compressed wood product and electronic device exterior material by three-dimensional compression.
In the 4th embodiment, adopt the timber 1-3 of the main board 1a with straight burr surface.Therefore, because compare the density of the texture G (fiber) that is presented among the main board 1a with first embodiment or second embodiment higher, so has improved the perspiration-absorptcharacteristics characteristics when timber 1-3 contacts with staff, thereby improved portability, and texture G plays anti-skidding effect.In addition, because compare the density of the texture G that is presented among the main board 1a with first embodiment or second embodiment higher, so further improved the outward appearance of timber.
(the 5th embodiment)
In the 5th following embodiment, omitted with first embodiment in the identical description of the described content of Fig. 1 to Fig. 3.
Fig. 8 is the figure that is illustrated in the compression process among the 5th embodiment.Fig. 8 represents that wherein main board 1a has the compression process of the timber 1-2 on line surface, footpath.Timber 1-2 is shaped under the situation that adds the volume that reduces by compression in advance.Particularly, shown in Fig. 8 A, plate portion 1b is shaped under the situation with the thickness W10 that adds the volume that reduces by compression in advance, and plate portion 1b has the height T5 that equates substantially with the compression back.Main board 1a has the thickness W9 that equates substantially with the compression back, and timber 1-2 is shaped under the situation with the width H5 that adds the cumulative volume that reduces by compression in advance.The thickness W10 of plate portion 1b forms bigger than the thickness W9 of main board 1a.Mid portion between main board 1a and plate portion 1b forms curved surface, makes the thickness W10 of plate portion 1b gradually become the thickness W9 of main board 1a.In timber 1-2, Fig. 8 shows protecgulum 10a in the exterior material 10 that is formed by compressed wood product or the shape of bonnet 10b.Because the shape of protecgulum 10a and bonnet 10b is mutually the same, so omitted the accompanying drawing and the description of another shape.
For timber 1-2, at first timber 1-2 is placed in the water vapour atmosphere of HTHP, shown in Fig. 8 A with said structure.When timber 1-2 was placed in the water vapour atmosphere of HTHP the scheduled time, timber 1-2 was owing to taken in excess moisture softens.Here in timber 1-2, because main board 1a has line surface, footpath, thereby the stacked direction M of texture G is present on the incline direction of Fig. 8, and machine direction L is along the depth direction of Fig. 8.
Then, compression wood 1-2.Here, compression direction is the arrow P direction shown in Fig. 8 B.Therefore, in timber 1-2, pressure is applied on the main board 1a along width H5 direction (being roughly the stacked direction of texture G), and pressure also is applied on the main board 1a along intersecting the direction of (vertical) with machine direction L.In addition, in timber 1-2, pressure is applied on the plate portion 1b along thickness W10 direction (being roughly the stacked direction M of texture G), and pressure also is applied on the plate portion 1b along intersecting the direction of (vertical) with machine direction L.Then, when timber 1-2 exerts pressure, timber 1-2 is being kept somewhere the scheduled time.
Finally, after timber 1-2 is kept somewhere the scheduled time, discharge high-temperature high-pressure steam atmosphere, take out compression wood 1-2.In the compression wood 1-2 that takes out, timber 1-2 is compressed at main board 1a and plate portion 1b has basic homogeneous thickness W9 ' and W10 ' respectively.In compression wood 1-2, the height T5 ' of height T5 before plate portion 1b is compressed into and equals substantially to compress.Compression wood 1-2 is compressed into width H5 '.
Therefore, among the timber 1-2 that compresses in the 5th embodiment, because pressure applies along intersecting the direction of (vertical) with machine direction L, so fibre density increases, this has given whole timber 1-2 high strength.Because along texture G stacked direction M compression main board 1a and plate portion 1b, so the hard fibre density of texture G increases, this has given main board 1a and plate portion 1b high strength.Timber 1-2 vertically is configured as along machine direction L, this intensity lower vertically on given intensity.As a result, can improve the intensity of compressed wood product and electronic device exterior material by three-dimensional compression.
In the 5th embodiment, adopt the timber 1-2 of the main board 1a with line surface, footpath.Therefore, because compare the density of the texture G (fiber) that is presented in the main board with first embodiment higher, thus improved the perspiration-absorptcharacteristics characteristics when timber 1-2 contacts with staff, thus portability improved, and texture G plays anti-skidding effect.In addition, because compare the density of the texture G that is presented among the main board 1a with first embodiment higher, further improved the outward appearance of timber.
In first embodiment to the, five embodiment, can the burn surface of the timber 1 (compressed wood product) that obtains by compression.Surface by burn wood 1 partly produces recessed and protruding at texture G, this has just produced perspiration-absorptcharacteristics characteristics and skidproof effect from bringing into use.In addition, the carburization zone that obtains by burn wood 1 surface becomes conductive material, and this carburization zone becomes more than the light electromagnetic shielding material of metal, and therefore the timber 1 that obtains by compression in first embodiment to the, five embodiment can be used as electronic device exterior material effectively.
In first embodiment to the, five embodiment, the compressed wood product with structure that plate portion 1b rises from main board 1a has been described as example.Yet, the invention is not restricted to first embodiment to the, five embodiment.As mentioned above, the present invention can be used for the article of Any shape, and as long as tableware for example is can be by along intersecting the direction of (vertical) the acquisition intensity of exerting pressure with the machine direction L of timber 1.For electronic device exterior material, the invention is not restricted to digital camera, but can be used for portable electronic equipment, for example camera, mobile communication equipment (mainly being cellular phone), digital audio tape (IC recorder), PDA(Personal Digital Assistant), portable television, portable receiver and be used for the remote control of various household implements.
Industrial applicability
As mentioned above, by considering in advance with respect to the compression direction of timber so that Wood shaping, and Carry out compression molding, be suitable for changing according to compressed wood product of the present invention and electronic device exterior material Kind strength of wood.
Claims (10)
1. compressed wood product comprises:
Compression wood, this compression wood comprise compression main board and the compressed side plate portion that rises from the whole periphery of described compression main board, wherein
This compression wood is made by the timber of the plate portion that comprises main board and rise from the whole periphery of described main board,
Described main board is to be shaped under the situation with the thickness that adds the volume that reduces by compression,
Described plate portion is to be shaped under the situation with the thickness that adds the volume that reduces by compression and height, and
To be made as compression direction with the surface of described main board and the two direction of intersecting of machine direction of described timber, and by described main board is exerted pressure along thickness direction, described plate portion is exerted pressure and formed described compression wood along thickness direction and short transverse.
2. compressed wood product according to claim 1 is characterized in that,
Described timber also comprises the sweep of being located between described main board and the plate portion, and described sweep is to be shaped under the situation that adds the volume that reduces by compression, and
Described sweep is subjected to the pressure that pressure that described main board portion branch bears and described side plate branch bear.
3. compressed wood product according to claim 1 and 2 is characterized in that,
Described main board has the plain weave surface for the surface that occurs along thickness direction.
4. compressed wood product according to claim 1 and 2 is characterized in that, described main board has line surface, footpath for the surface that occurs along thickness direction.
5. compressed wood product according to claim 1 and 2 is characterized in that, described main board has the straight burr surface for the surface that occurs along thickness direction.
6. compressed wood product comprises:
Compression wood, this compression wood comprise compression main board and the compressed side plate portion that rises from the whole periphery of described compression main board, and this compression wood has basic homogeneous thickness in described compression main board and described compressed side board office, wherein
This compression wood is made by the timber of the plate portion that comprises main board and rise from the whole periphery of described main board,
Described main board is to be shaped under the situation with the width that adds the volume that reduces by compression,
Described plate portion is to be shaped under the situation with the thickness that adds the volume that reduces by compression, and
To be made as compression direction along the surface of described main board and with direction that the machine direction of described timber is intersected, and by described main board broad ways is exerted pressure, described plate portion is exerted pressure and formed described compression wood along thickness direction.
7. compressed wood product according to claim 6 is characterized in that, described main board has line surface, footpath for the surface that occurs along thickness direction.
8. compressed wood product according to claim 6 is characterized in that, described main board has the straight burr surface for the surface that occurs along thickness direction.
9. according to claim 1 or 6 described compressed wood products, it is characterized in that described timber vertically is machine direction along described timber after shaping.
10. electronic device exterior material is by forming according to claim 1 or 6 described compressed wood products.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP013238/2004 | 2004-01-21 | ||
| JP013237/2004 | 2004-01-21 | ||
| JP2004013237A JP4217165B2 (en) | 2004-01-21 | 2004-01-21 | Compressed wood products and exterior packaging for electronic devices |
| JP013239/2004 | 2004-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1905998A CN1905998A (en) | 2007-01-31 |
| CN100430193C true CN100430193C (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800019030A Expired - Fee Related CN100430193C (en) | 2004-01-21 | 2005-01-21 | Compressed wood product and electronic device exterior material |
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| Country | Link |
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| JP (1) | JP4217165B2 (en) |
| CN (1) | CN100430193C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4847261B2 (en) * | 2005-09-28 | 2011-12-28 | オリンパス株式会社 | Wood processing method |
| JP2011148275A (en) * | 2010-01-25 | 2011-08-04 | Olympus Corp | Method for manufacturing compressed wood product, and compressed wood product |
| JP2013151113A (en) * | 2012-01-25 | 2013-08-08 | Olympus Corp | Case production method, case and case molding device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR898217A (en) * | 1942-09-22 | 1945-04-13 | Manufacturing process of laminated materials, in particular compressed wood impregnated with synthetic resin | |
| US2787306A (en) * | 1952-12-19 | 1957-04-02 | Helen W Lundstrom | Shuttle block and method of forming same |
| JPH0825301A (en) * | 1994-07-15 | 1996-01-30 | Yokoi Shoten:Goushi | Working method of wood |
| JPH1177619A (en) * | 1997-09-10 | 1999-03-23 | Mitsuhiko Tanahashi | Three-dimensional processing of wooden material |
| CN1082419C (en) * | 1998-03-11 | 2002-04-10 | 安善泰 | Compressing method and equipment for raising hardness and strength of wood |
-
2004
- 2004-01-21 JP JP2004013237A patent/JP4217165B2/en not_active Expired - Fee Related
-
2005
- 2005-01-21 CN CNB2005800019030A patent/CN100430193C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR898217A (en) * | 1942-09-22 | 1945-04-13 | Manufacturing process of laminated materials, in particular compressed wood impregnated with synthetic resin | |
| US2787306A (en) * | 1952-12-19 | 1957-04-02 | Helen W Lundstrom | Shuttle block and method of forming same |
| JPH0825301A (en) * | 1994-07-15 | 1996-01-30 | Yokoi Shoten:Goushi | Working method of wood |
| JPH1177619A (en) * | 1997-09-10 | 1999-03-23 | Mitsuhiko Tanahashi | Three-dimensional processing of wooden material |
| CN1082419C (en) * | 1998-03-11 | 2002-04-10 | 安善泰 | Compressing method and equipment for raising hardness and strength of wood |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4217165B2 (en) | 2009-01-28 |
| CN1905998A (en) | 2007-01-31 |
| JP2005205674A (en) | 2005-08-04 |
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