JP2007168182A - Compressed wood product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compressed wood product capable of preventing the deterioration of compressed wood even in a case that the adhesive area of the compressed wood with other member is larger than the ratio occupying the surface area of the compressed wood. <P>SOLUTION: The compressed wood product is equipped with a first member (exterior member 42) comprising compression-molded wood, the second member (mechanism member 41) fixed to the first member and comprising a material different from wood and the elastic adhesive (adhesive 43) interposed between the first and second members to bond the first and second members. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a compressed wood product formed using compression-molded wood.

  In recent years, natural wood has attracted attention. Since wood has various grain patterns, individual differences occur depending on the location of the raw wood, and the individual differences are the individuality of each product. In addition, scratches and changes in color caused by long-term use may also have a unique texture and may be familiar to the user. For these reasons, wood is attracting attention as a material that can produce unique and tasty products that are not found in products using synthetic resins and light metals, and its processing technology is also making dramatic progress.

  Conventionally, as a processing technique for such wood, after compressing a piece of water-absorbed and softened wood and slicing the wood substantially parallel to the compression direction to obtain a plate-like primary fixed product, this primary fixed product is heated and absorbed by water. There is known a technique of forming a predetermined three-dimensional shape while performing the process (for example, see Patent Document 1). There is also known a technique in which a piece of wood compressed in a softened state is temporarily fixed, and this wood is put into a mold and recovered to mold (for example, see Patent Document 2). Wood (compressed wood) compression-molded using such a processing technique has a strength that can be applied as an exterior body of an electronic device (see, for example, Patent Document 3).

Japanese Patent No. 3078452 JP-A-11-77619 JP-A-2005-153364

  By the way, the compressed wood may be reinforced by bonding other members or may have a specific function. In addition, the design may be improved by bonding other members to the compressed wood. As other members bonded to the compressed wood in this way, members formed using metal or synthetic resin are often applied. Since such metals and synthetic resins have a linear expansion coefficient that is significantly different from that of compressed wood, for example, when an entire surface of compressed wood is bonded to another member, the bonding area between the compressed wood and the other member is reduced. However, when the ratio occupied by the surface area of the compressed wood is large, the influence caused by the difference in the linear expansion coefficient may become remarkable.

  Specifically, the compressed wood may change in size and shape due to various external factors, but the metal or the synthetic resin hardly changes greatly following the change in the compressed wood. For this reason, if the ratio of the bonding area between the compressed wood and other members to the surface area of the compressed wood is large, excessive stress is applied to the compressed wood, resulting in degradation such as cracking. There was a thing.

  The present invention has been made in view of the above, and prevents deterioration of compressed wood even when the ratio of the adhesion area between the compressed wood and other members to the surface area of the compressed wood is large. It aims to provide a compressed wood product that can be used.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is a first member made of compression-molded wood, and is fixed to a surface of the first member, and the wood is A second member made of a different material, and an elastic adhesive interposed between the first member and the second member to bond the first member and the second member. It is characterized by that.

  In the present invention, the “elastic adhesive” means an adhesive having elasticity at normal temperature (5 to 35 ° C.) after curing and having a glass transition temperature lower than normal temperature.

  According to a second aspect of the present invention, in the first aspect of the invention, the first member has a groove on a surface bonded to the second member, and the second member is the first member. A protrusion that can be fitted into the groove is provided at a position facing the groove when bonded to a member.

  According to a third aspect of the present invention, in the second aspect of the present invention, a part of the bonding surface between the groove and the protrusion is substantially perpendicular to the thickness direction of the first member.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the second member includes at least one of a metal, a thermoplastic resin, and a hard rubber. To do.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the functional member for the electronic device disposed inside the housing member that covers the electronic device is exposed. It is a lid member which covers the formed gap part so that opening and closing is possible.

  The invention according to claim 6 is the invention according to claim 5, wherein the casing member includes a plurality of woods compression-molded into a three-dimensional shape, and a joining member that joins the plurality of woods. The second member is hinged to the joining member.

  According to the compressed wood product of the present invention, the first member made of compressed wood, the second member fixed to the surface of the first member and made of a material different from the wood, the first member An elastic adhesive that is interposed between the first member and the second member and bonds the first member and the second member; Even when the ratio of the bonded area to the surface area of the compressed wood is large, deterioration of the compressed wood can be prevented.

  The best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an application example of a compressed wood product according to an embodiment of the present invention. Specifically, FIG. 1 is a perspective view showing an external configuration of an electronic device that is packaged using the compressed wood product. 2 is a diagram illustrating a detailed configuration of an exterior body that sheathes the electronic device illustrated in FIG. 1, and corresponds to the exploded perspective view of FIG. 1 excluding the internal structure of the electronic device. In the drawings, the wood grain is omitted.

  The exterior body 1 shown in FIG. 1 and FIG. 2 is an exterior of the digital camera 100 that is an electronic device, and the cover members 2 and 3 that form a casing member, and the cover member 2 and the cover member 3 are combined. The cover member 4 that covers the gap formed by the opening and closing freely, and the joining member 5 to which the cover members 2 and 3 are joined and the lid member 4 is attached.

The cover member 2 that covers the front side of the digital camera 100 has a main plate portion 2a having a curved surface in the vicinity of one end portion along the longitudinal direction and a plate shape in the vicinity of the other end portion, and the length of the main plate portion 2a. It has two side plate portions 2b and 2c having substantially the same shape that rises and extends in a direction substantially perpendicular to the main plate portion 2a along the direction. The main plate 2a is formed with a cylindrical opening 21 that exposes the imaging unit 101 having the imaging lens and a rectangular parallelepiped opening 22 that exposes the flash 102. Further, a cutout 23 having a semi-cylindrical shape is formed in the side plate portion 2b. The end surface of the cover member 2 facing the lid member 4 has a concave shape. The cover member 2 is made of compression-molded wood, and its wood fiber direction L ₂ is substantially parallel to the longitudinal direction of the cover member 2 and intersects the thickness direction at all locations of the cover member 2.

The cover member 3 that covers the back side of the digital camera 100 also has substantially the same shape as the cover member 2, and a main plate portion that has a curved surface in the vicinity of one end and a flat shape in the vicinity of the other end along the longitudinal direction. 3a and two side plate portions 3b and 3c having substantially the same shape extending along the longitudinal direction of the main plate portion 3a and extending in a direction substantially orthogonal to the main plate portion 3a. The main plate 3a is formed with a rectangular parallelepiped opening 31 that exposes a display for displaying image information and text information. Further, a semi-cylindrical cutout 32 is formed in the side plate portion 3b. This cover member 3 is also made of compression-molded wood, and its wood fiber direction L ₃ is substantially parallel to the longitudinal direction of the cover member 3 and intersects the thickness direction at all locations of the cover member 3.

  As the cover members 2 and 3 having the above configuration, wood such as cypress, hiba, cedar, paulownia, pine, cherry, cocoon, ebony, bamboo, teak, mahogany, rosewood, etc. can be used. It is only necessary to select the most suitable kind of wood after taking into consideration.

  The lid member 4, which is a compressed wood product according to the present embodiment, is adhered to the mechanism member 41 that is rotatably attached to the joining member 5 and the outer surface when the mechanism member 41 is attached to the joining member 5. And an adhesive 43 for bonding the mechanism member 41 and the exterior member 42 to each other. The mechanism member 41 is the second member in the claims, and the exterior member 42 is the first member in the claims.

  FIG. 3 is a diagram showing a configuration of the lid member 4, and is a partial cross-sectional view taken along line AA in FIG. 1. The mechanism member 41 includes a main plate portion 41a having a substantially rectangular parallelepiped shape, a hinge portion 41b that is provided at one end of the main plate portion 41a and is hinged to the joining member 5 via a hinge shaft 45, and a main plate. A hook portion 41c that is provided at an end portion of the portion 41a opposite to the hinge portion 41b and is engaged with the joining member 5. This mechanism member 41 is made by casting a metal (aluminum, titanium, iron, stainless steel, etc.) or reinforcing it by adding a thermoplastic resin (polyamide, polyacetal, polyester, polycarbonate, ABS, etc.) with glass fiber or the like. (Including resin). Further, the mechanism member 41 may be formed of hard rubber.

  The exterior member 42 has a flat plate shape and is made of wood that is compression-molded in the same manner as the cover members 2 and 3. One surface of the exterior member 42 is bonded to the mechanism member 41. The wood fiber direction of the wood forming the exterior member 42 may be any direction, and changes depending on the grain of the surface. The type of wood forming the exterior member 42 may be the same type of wood as the cover members 2 and 3 described above, or may be a different type of wood.

  The adhesive 43 is an elastic adhesive. Elastic adhesives cure by chemically reacting with moisture in the air, but because their glass transition temperature is lower than room temperature, they have elasticity after curing at room temperature, and have excellent heat resistance and water resistance. Adhesive. As the adhesive 43, it is common to apply a commercially available elastic adhesive mainly composed of a modified silicone resin or an epoxy / modified silicone resin. In addition, some rubber-based adhesives are also applicable, although heat resistance and water resistance are slightly inferior to those of such elastic adhesives. By interposing the adhesive 43 between the mechanism member 41 and the exterior member 42, the linear expansion coefficient of the mechanism member 41 made of metal or synthetic resin and the linear expansion coefficient of the exterior member 42 made of wood are obtained. Serves to absorb differences and absorb. Further, when the compressed wood forming the exterior member 42 is deformed due to external factors such as external temperature and external force, the adhesive 43 is deformed following the deformation, so that excessive stress is applied to the exterior member 42. It functions to prevent deterioration such as cracks that may occur when added.

  When the lid member 4 having the above configuration is assembled to the digital camera 100, an exterior member 42 made of compressed wood is located on the outside, and the exterior member 42 is reinforced to open and close the lid member 4. Although the mechanism member 41 provided is positioned inside, the mechanism member 41 is also exposed to the outside when the lid member 4 is opened. In this sense, it can be said that the mechanism member 41 bears a part of the design of the digital camera 100. Therefore, it is more preferable to select a material in consideration of the contrast with the exterior member 42 and the like.

  The joining member 5 is made of a substantially U-shaped metal, and joins the cover member 2 and the cover member 3. A hinge portion 5 a is provided at one end of the joining member 5, and a metal hinge shaft 45 is inserted together with the hinge portion 41 b of the mechanism member 41. An opening 51 for locking the hook portion 41 c of the mechanism member 41 is formed at the other end of the joining member 5. An opening 52 for attaching the shutter button 103 is formed at a position facing the notch 23 of the cover member 2 of the joining member 5 and the notch 32 of the cover member 3. As shown in FIG. 3, the thickness near the opening 51 is such that the bottom surface of the hook portion 41 c is flush with the bottom surfaces of the side plate portions 2 c and 3 c in a state where the hook portion 41 c is locked to the opening portion 51. The thickness of the other part of the joining member 5 is slightly thinner.

  By interposing the joining member 5 having the above configuration between the two cover members 2 and 3, the deformation of the cover member 2 and / or 3 due to the action of external force can be suppressed, Various functional members housed inside can be protected.

  FIG. 4 is a view showing a state in which the lid member 4 is rotated with respect to the joining member 5 and the inside of the digital camera 100 is exposed, and is seen from the same cut surface (A-A line in FIG. 1) as FIG. FIG. In order to reach the state shown in FIG. 4, the hook portion 41 c is removed from the opening 51 in the state shown in FIG. 3, and the lid member 4 is rotated about 90 degrees about the hinge shaft 45. A mounting member for mounting a storage medium 6 (functional member) such as an xD picture card is disposed in the gap 8 where the lid member 4 is removed from the joining member 5 in this way. The part is exposed (see FIG. 5 described later).

  When the exterior body 1 having the above configuration is assembled, the cover members 2 and 3 and the joining member 5 are first bonded by applying an adhesive or the like. Thereafter, the hinge part 41 b of the mechanism member 41 and the hinge part 5 a of the joining member 5 are aligned, the hinge shaft 45 is inserted, and the lid member 4 (the mechanism member 41) is hinged to the joining member 5. To do. Although not shown in FIG. 2, for example, bosses or ribs are provided at appropriate positions on the side surfaces of the joining member 5, and these bosses or ribs are attached to the edge of the cover member 2 or cover member 3 during assembly. You may make it press-fit. Further, the cover members 2 and / or 3 and the joining member 5 may be fixed by screwing or the like.

  By the way, when bonding the joining member 5 and the cover members 2 and 3, it is not always necessary to use an elastic adhesive. This is because the bonding member 5 and the cover members 2 and 3 have a small proportion (1% or less) of the bonding area with respect to the surface area of the cover members 2 and 3 because the end surfaces of the cover members 2 and 3 become bonding surfaces. For). That is, in this case, even if the cover members 2 and 3 are deformed, the influence of the joining member 5 not following and deforming is extremely small, so that one whole surface of the compressed wood becomes an adhesive surface. There is no possibility that the cover members 2 and 3 are excessively stressed and deteriorated such as cracks as in the cover member 4. In this sense, the effect of using the elastic adhesive becomes significant when the area of adhesion between the compressed wood and other members (metal, synthetic resin, etc.) occupies at least several tens of percent of the surface area of the compressed wood. .

  FIG. 5 is a diagram schematically showing the schematic configuration inside the digital camera 100, and is a cross-sectional view taken along the line BB of FIG. As shown in FIG. 5, the digital camera 100 includes a control circuit 104 that performs drive control related to imaging processing, an imaging element 105 such as a CCD (Charge Coupled Device), a liquid crystal display, a plasma display, or an organic EL ( Various functional members including a display unit 106 realized using an electroluminescence display and the like, and a drive circuit 107 that drives the display unit 106 under the control of the control circuit 104 are housed. Among these, the control circuit 104 is realized by a CPU (Central Processing Unit) having arithmetic and control functions. Further, a storage medium connector 108 for mounting the storage medium 6 and a battery holder 109 for holding the battery 7 (functional member) are also arranged so that their mounting portions are exposed to the outside when the lid member 4 is opened. ing. Note that the various functional members described here are assembled into the exterior body 1 at an appropriate stage before, after, or during the assembly of the exterior body 1 described above.

  Next, a method for processing the cover members 2 and 3 that are compressed wood and the exterior member 42 that forms part of the lid member 4 will be described. FIG. 6 is an explanatory view schematically showing a situation in which the wood used as the raw material for the cover members 2 and 3 and the exterior member 42 is formed from a solid material in an uncompressed state. As shown in the figure, when the timber 61 that is the raw material of the cover members 2 and 3 is shaped, the timber 61 is shaped so that its longitudinal direction is substantially parallel to the wood fiber direction L of the solid material 60. The surface of the main plate portion 61a of the wood 61 forms a grid surface. Further, the wood 61 has a volume obtained by adding in advance a volume that is reduced by a compression process described later. On the other hand, the timber 62 which is a raw material of the exterior member 42 is shaped like a flat plate so that the surface facing the outside when it is attached to the mechanism member 41 forms a plate surface.

  Note that the shape of the timbers 61 and 62 is not limited to the above-described case, and the strength and aesthetics required for the exterior body 1 from among the mesh surface, the plate surface, the memorial surface, or the mouth end surface. Appropriate shaping may be performed in consideration of conditions such as the shape of the exterior body 1 and the type of the solid material 60 to be used.

  Subsequently, a compression process for compressing the wood shaped as described above will be described. FIG. 7 is a diagram showing an outline of the compression process when the wood 61 is compressed. In the compression step shown in the figure, the wood 61 is compressed using a pair of molds 71 and 81. Of the pair of molds, a mold 71 that applies a compressive force to the wood 61 from above the wood 61 has a convex portion 72 that projects downward and corresponds to the shape of the inner surface of the cover members 2 and 3. On the other hand, a mold 81 that applies a compressive force to the wood 61 from below the wood 61 during compression has a recess 82 that is recessed downward and corresponds to the shape of the outer surface of the cover members 2 and 3.

  When the wood 61 is compressed using the molds 71 and 81 having the above-described configuration, the wood 61 is left in a steam atmosphere at a higher temperature and higher pressure than the atmosphere for a predetermined time, so that moisture is excessively absorbed and softened. The high temperature and high pressure here means a temperature of 100 to 230 ° C., more preferably 150 to 230 ° C., still more preferably about 180 to 200 ° C., and a pressure of 0.1 to 3.0 MPa (megapascal), more preferably. Indicates a state of about 0.45 to 2.5 MPa, more preferably about 1.0 to 1.6 MPa. Instead of leaving the wood 61 to be softened in the steam atmosphere described above, the wood 61 may be softened by heating with high-frequency electromagnetic waves such as microwaves.

  Thereafter, the wood 61 is compressed in the same steam atmosphere as described above. In FIG. 8, after the softened wood 61 is arranged at a predetermined position, the mold 71 is lowered to sandwich the wood 61 with the mold 81, and a predetermined compressive force is applied to the sandwiched wood 61. It is a figure which shows the state which has added, and is a figure which shows the state which the deformation | transformation by the compressive force of the wood 61 was substantially completed. As shown in FIG. 8, the wood 61 is deformed into a three-dimensional shape corresponding to the gap between the mold 71 and the mold 81 by receiving a compressive force from the molds 71 and 81. Thereafter, after applying a compressive force to the wood 61 for a predetermined time (1 to several tens of minutes, more preferably about 5 to 10 minutes), the wood 61 is dried by releasing the water vapor atmosphere, and the mold 71 and the mold 81 are dried. To release the compression. As a result, the thickness r of the wood 61 becomes substantially uniform, and is about 30 to 50% of the thickness R before the compression process is performed. In other words, the compression ratio C = (R−r) / R of the wood 61 is about 0.5 to 0.7.

  When the mold 71 is moved up and down relatively with respect to the mold 81 in the compression process described above, at least one of the molds 71 and 81 is electrically driven using an appropriate driving means. Alternatively, the mold 71 and the mold 81 may be coupled with a screw, and the mold 71 may be moved up and down relatively with respect to the mold 81 by manually or automatically tightening the screw. Good.

  The openings and cutouts formed in the cover members 2 and 3 are formed by cutting or drilling after compressing the wood 61, but are formed collectively when the wood 61 is formed from the solid material 60. Also good. In addition to the openings and cutouts described above, openings and cutouts for displaying a finder and operation input buttons may be provided, and sound generated by a speaker provided inside the digital camera 100 may be provided. You may provide the audio | voice output hole part for outputting outside.

  So far, the compression process of the wood 61 which is the raw material of the cover members 2 and 3 has been described, but the compression process of the wood 62 which is the raw material of the exterior member 42 is the same. That is, the wood 62 shaped from the solid material 60 is left for a predetermined time in the same steam atmosphere as described above, and the wood 62 is sandwiched by using a pair of dies different from the dies 71 and 81, and a compressive force is applied. For a predetermined time. After that, the steam atmosphere is released, the wood 62 is dried, and the pair of molds holding the wood 62 is separated, whereby the exterior member 42 having a flat plate shape thinner than the wood 62 is obtained.

  The exterior member 42 compression-molded as described above is bonded to the mechanism member 41 using the adhesive 43. When this bonding is performed, the adhesive 43 is thinly and evenly applied to each bonding surface of the mechanism member 41 and the exterior member 42, and is sufficiently dried until the surface is not sticky. . Thereby, the lid member 4 as the compressed wood product according to the present embodiment is completed.

  According to the compressed wood product (lid member) according to the embodiment of the present invention described above, the exterior member (first member) made of compression-molded wood, and the wood fixed to the surface of the exterior member. A mechanical member (second member) made of a material different from that of the wood and having a linear expansion coefficient significantly different from that of wood, and elastic bonding that bonds both members by interposing between the exterior member and the mechanical member By providing the agent, deterioration of the compressed wood can be prevented even when the ratio of the adhesion area between the compressed wood and other members to the surface area of the compressed wood is large.

  Further, according to the present embodiment, by forming the exterior body of the electronic device using a plurality of compressed timbers (cover members, lid members), each compressed timber has extremely weak portions and directions. As a whole exterior body that combines them, it has high and uniform strength regardless of location and direction, it is easy to mold, and the wood after compression molding is burred, etc. There is no fear of causing problems. In particular, in the present embodiment, when the compressed wood is used to externally mount the electronic apparatus, a lid member which is a separate member is used in a portion where the strength is likely to be weakened when the compressed wood integrally formed as a cover member is used. Therefore, there is no possibility that a problem of strength of such a portion will occur. In addition, by attaching the lid member to the cover member so as to be openable and closable, it is possible to secure a mounting surface for a battery or a storage medium that is essential as an exterior body of the electronic device.

  Furthermore, according to the present embodiment, by using a plurality of compressed timbers for the exterior, individual differences for each product due to the difference in grain arise, and high designability can be achieved.

  As mentioned above, although one embodiment considered to be the best in carrying out the present invention has been described in detail, the present invention is not limited only by this embodiment. FIG. 9 is a diagram showing another configuration of a lid member that is an example of the compressed wood product according to the present invention. The lid member 9 shown in the figure is similar to the lid member 4 described above, and includes a mechanism member 91 (including a main plate portion 91a, a hinge portion 91b, and a hook portion 91c (not shown)) made of metal or synthetic resin, and compressed wood. A flat plate-shaped exterior member 92. A plurality of boss-like protrusions 911 (four in FIG. 9) are formed on the surface of the main plate portion 91a of the mechanism member 91 that is bonded to the exterior member 92. On the other hand, a plurality of groove portions 921 into which each of the plurality of protrusions 911 described above can be fitted when the mechanism member 91 is bonded are formed on the surface of the exterior member 92 that is bonded to the mechanism member 91.

  FIG. 10 is a diagram showing a configuration of the lid member 9 when the mechanism member 91 and the exterior member 92 are bonded by an adhesive 93 that is an elastic adhesive, and a cross-section corresponding to the cross-sectional view of the lid member 4 of FIG. FIG. As shown in FIG. 10, in addition to being interposed between the surfaces of the mechanism member 91 and the exterior member 92, the adhesive 93 is also interposed between the protruding portion 911 and the groove portion 921 to bond them together. is doing.

  Therefore, the cover member 9 has a larger bonding area due to the adhesive 93 than the cover member 4 described above, and the mechanism member 91 and the exterior member 92 can be more reliably bonded. In addition, since a part of the bonding surface between the protruding portion 911 and the groove portion 921 is orthogonal to the thickness direction of the exterior member 92, even if the exterior member 92 made of wood tries to deform in the vertical direction in FIG. Since 911 has a function of suppressing deformation, the mechanism member 91 is not greatly deformed.

  In addition, the shape of the protrusion of the mechanism member is not limited to the boss shape described above, and it is only necessary to have a protrusion in a direction intersecting the adhesion surface, but a polygonal column shape rather than a cone shape having a sharp end. The frustum shape is more preferable because the bonding area can be increased. Of course, the shape of the groove formed in the exterior member is appropriately changed according to the shape of the protrusion.

  In the description so far, the cover member constituting the exterior body is also formed of compressed wood, but the cover member may be formed of metal or synthetic resin.

  Compressed wood products according to the present invention are electronic devices other than digital cameras, such as portable audio devices such as mobile phones, PHS, PDA, MD, CD, DVD or cassette tapes, IC recorders, portable televisions, portable radios, and various types. The present invention can also be applied as a lid member that forms a part of an exterior body such as a remote controller for home appliances and digital video. Needless to say, the present invention can also be applied to compressed wood products for various uses other than the lid member.

  Thus, the present invention can include various embodiments and the like not described herein, and various design changes and the like can be made without departing from the technical idea specified by the claims. It is possible to apply.

It is a perspective view which shows the example of application of the compression wooden product (lid member) which concerns on one embodiment of this invention. It is a figure which shows the structure of the exterior body of the electronic device of FIG. FIG. 2 is a partial cross-sectional view taken along line AA in FIG. 1. It is a figure which shows the state which opened the cover member. It is the BB line cross-sectional view of FIG. It is explanatory drawing which shows typically the condition which shapes wood from the solid material of an uncompressed state. It is explanatory drawing which shows the outline | summary of the compression process at the time of processing the exterior body for electronic devices which concerns on one embodiment of this invention. It is a figure which shows the state at the time of the wood compression in a compression process. It is explanatory drawing which shows the structure of the compression wooden product (lid member) which concerns on other embodiment of this invention. It is sectional drawing when the lid member shown in FIG. 9 is assembled.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exterior body 2, 3 Cover member 2a, 3a, 41a, 61a, 91a Main board part 2b, 2c, 3b, 3c Side board part 4, 9 Lid member (compression wood product)
DESCRIPTION OF SYMBOLS 5 Joining member 5a, 41b, 91b Hinge part 6 Storage medium (functional member)
7 Batteries (functional members)
8 Cavity 21, 22, 31, 51, 52 Opening 23, 32 Notch 41, 91 Mechanism member (second member)
41c Hook part 42, 92 Exterior member (first member)
43, 93 Adhesive (elastic adhesive)
45 Hinge shaft 60 Solid material 61, 62 Wood 71, 81 Mold 72 Convex part 82 Concave part 100 Digital camera (electronic equipment)
101 imaging unit 102 flash 103 Shutter button 104 control circuit 105 imaging device 106 display unit 107 the drive circuit 108 storage media connector 109 battery holder 911 projections 921 groove L, L _2, L ₃ wood fiber direction

Claims (6)

A first member made of compression-molded wood;
A second member fixed to the surface of the first member and made of a material different from the wood;
An elastic adhesive interposed between the first member and the second member to bond the first member and the second member;
A compressed wood product characterized by comprising: The first member has a groove on a surface bonded to the second member,
2. The compressed wood product according to claim 1, wherein the second member has a protruding portion that can be fitted into the groove portion at a position facing the groove portion when the second member is bonded to the first member.   3. The compressed wood product according to claim 2, wherein a part of an adhesive surface between the groove and the protrusion is substantially orthogonal to a thickness direction of the first member.   The compressed wood product according to any one of claims 1 to 3, wherein the second member includes at least one of a metal, a thermoplastic resin, and a hard rubber.   2. A lid member that covers a gap formed at a position where a functional member for the electronic device disposed inside a casing member that covers the electronic device is exposed so as to be openable and closable. The compressed wood product as described in any one of -4. The housing member has a plurality of wood compression-molded into a three-dimensional shape, and a joining member that joins the plurality of woods,
The compressed wood product according to claim 5, wherein the second member is hinged to the joining member.

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