JP2004291598A - Working device of woody material, and working method of woody material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working method of a woody material capable of shortening a working time and stabilizing a shape of the woody material worked. <P>SOLUTION: When the woody materials 10 and 11 are compressively deformed by an upper mold 14 and a lower mold 16, a packing 18 is brought into close contact with a packing groove 15 and the upper mold 14 and the lower mold 16 are closed tightly. Thus, water evaporation from the materials 10 and 11 are inhibited. Thereby, a definite degree of the moisture can be retained in the woody materials 10 and 11, as a result, the inside temperature of the woody material 10 and 11 is raised quickly and easily softened so that the working time is shortened. Further, because the initial moisture content is maintained, a stress due to working can be relaxed and the shape of the woody materials 10 and 11 can be stabilized. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wood material processing apparatus and a wood material processing method for forming an automobile part by deforming the wood material.
[0002]
[Prior art]
When compressing or bending a wooden material to form an automobile part, there is a case where the wooden material is processed while being heated so as to be easily deformed. However, since the water in the wood evaporates during processing, the temperature inside the wood material rises slowly, making it difficult to soften, thereby increasing the heating time. In addition, stress is generated when the pores inside the wooden material are deformed, but the internal stress due to the processing is not relaxed due to moisture evaporation, so that the shape change of the wooden material becomes large due to moisture absorption and desorption by the processed wooden material.
[0003]
On the other hand, there is a case where a wooden material absorbs high-temperature steam to soften the wooden material before compression or bending (for example, see Patent Document 1). In this case, there is an effect of alleviating the internal stress as compared with the processing of the wooden material as it is. However, the time required for drying becomes extremely long because the water content of the wood material is high.
[0004]
[Patent Document 1]
JP-A-11-180312 (page 4)
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a wooden material processing apparatus and a wooden material processing method which can reduce the processing time and stabilize the shape of the processed wooden material in consideration of the above facts.
[0006]
[Means for Solving the Problems]
The wood material processing apparatus according to the first aspect of the present invention includes a deforming unit that compresses or bends the wooden material at least, and evaporates water from the wooden material when the deforming unit deforms the wooden material. And a closing means for blocking, wherein a part for an automobile is molded.
[0007]
Here, automotive parts refer to parts that give a occupant or user a makeup function by applying a wood pattern to the surface, such as an interior decoration of an automobile or an exterior wall plate of a vehicle, for example, a wheel ring of a steering wheel. And the knob of the shift lever, the knob of the lever combination switch, and the panel of the window regulator.
[0008]
According to the wood material processing apparatus of the present invention, when the wood material is deformed by the deformation means to form an automobile part, the closing means prevents water evaporation from the wood material. In this way, the closing means prevents moisture from evaporating and keeps the wood material at a certain level of moisture, so that the temperature inside the wood material rises faster and becomes easier to soften, thereby shortening the processing time. In addition, since the initial moisture is retained during the processing, the stress due to the processing can be reduced, so that the shape can be stabilized.
[0009]
According to a second aspect of the present invention, there is provided the apparatus for processing wood material according to the first aspect, wherein the closing means seals a mold as the deforming means.
[0010]
According to the apparatus for processing wood material of the present invention, the closing means seals the mold. In this way, by closing the mold with the closing means, the evaporation of water from the wooden material during processing is closed. The closing of the mold does not need to be closed in all steps during the forming process, but may be closed in the processing step in which a large amount of moisture evaporates from the wooden material.
[0011]
According to a third aspect of the present invention, there is provided the apparatus for processing a wooden material according to the first aspect, wherein the closing means is provided with a sealing material on a mouth of the wooden material.
[0012]
According to the wooden material processing apparatus of the third aspect of the present invention, the closing means disposes the sealing material on the opening face of the wooden material. Here, the kiguchi surface is a cut surface obtained by cutting the trunk, and on this kiguchi surface, conduits that are in line with the longitudinal direction of the trunk and are substantially parallel to the longitudinal direction of the trunk are cut to intersect with the moisture conducting direction. ing. For this reason, moisture easily enters and exits through the conduit on the wooden surface. In this way, by arranging the sealing material on the wood edge where water is particularly likely to enter and exit from the wood material, the evaporation of water from the wood material during processing is effectively shut off. The cut surface is a cut surface of a wooden material in which a large number of cut surfaces of a conduit are exposed, and a material is not limited to a cross section at all, and often has a plurality of cut surfaces.
[0013]
According to a fourth aspect of the present invention, there is provided the wooden material processing apparatus according to any one of the first to third aspects, wherein the deforming means compresses or bends and deforms the wooden material at least. The present invention is characterized in that a wooden member for a wheel ring of a wheel is formed.
[0014]
According to the wooden material processing apparatus of the present invention, the deforming means compresses or bends the wooden material at least to form a wooden member of the steering wheel. As described above, by shaping the wooden member of the steering wheel by deforming the wooden material while closing the water evaporation, the processing time can be shortened and the shape of the wooden member can be stabilized. In particular, since the longitudinal axis of the wheel ring is bent in an arc shape, when processed from straight wood, the deformation amount due to the processing is large, and the method of the present invention is suitable.
[0015]
According to a fifth aspect of the present invention, there is provided a method of processing a wooden material according to the present invention, wherein the closing means prevents moisture from evaporating from the wooden material, and the deforming means compresses or bends the wooden material at least to form an automobile part. It is characterized by the following.
[0016]
According to the method of processing a wooden material according to the fifth aspect of the present invention, the closing means prevents evaporation of water from the wooden material, and the deforming means compresses or bends the wooden material at least to form an automobile part. I do. As described above, by retaining the initial moisture in the processing step, the processing time can be reduced, and the shape after processing can be stabilized.
[0017]
According to a sixth aspect of the present invention, there is provided a method for processing a wooden material according to the fifth aspect, wherein at least the wooden material is compressed or bent and deformed by a molding die as the deforming means. It is characterized in that the member is molded.
[0018]
According to the wooden material processing method of the present invention, a wooden member for a wheel ring of a steering wheel is formed by at least compressing or bending deforming the wooden material by the deforming means. As described above, in the step of forming the wood member for the wheel ring of the steering wheel, by deforming while retaining the initial moisture of the wood material, the processing time can be reduced and the shape of the wood member can be stabilized. it can.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of a wooden material processing apparatus and a wooden material processing method according to the present invention will be described based on the drawings.
[0020]
FIG. 1 shows a schematic sectional view of a wooden material compression processing apparatus and a wooden material. The wooden material 10 processed by the compression processing device 12 becomes a wooden member 30 of the steering wheel 28 as shown in FIG. 3 after the processing.
[0021]
FIG. 2 is a perspective view of the upper and lower dies 14 and 16 and the wooden materials 10 and 11 in the compression processing apparatus 12. As shown in FIG. 2, the wooden materials 10 and 11 are chamfered B at four corners from a square pillar-shaped raw wood material, and are cut out or bent in an arc shape in a longitudinal direction. It is cut into two (half) in the thickness direction along the direction to be a wooden material 10 and a wooden material 11.
[0022]
A core metal 22 is disposed between the two wooden materials 10 and 11 at the time of compression processing. At this time, the core metal 22 is accommodated in the core metal grooves 10A and 11A of the two wooden materials 10 and 11.
[0023]
As shown in FIG. 1, a compression processing device 12 for compressing wood materials 10 and 11 is provided with a pressure vessel 13. The pressure vessel 13 is formed of a box made of a high-strength metal (for example, steel or stainless steel) so as to withstand high temperature and pressure. A lid (not shown) is attached to the pressure vessel 13 so as to be openable and closable, and when closed, a closed state is maintained. The inside of the pressure vessel 13 is maintained at a high temperature (for example, 120 ° C. to 220 ° C. (die heating temperature)) by a heater (not shown).
[0024]
An upper mold 14 and a lower mold 16 are vertically arranged inside the pressure vessel 13, and piston rods 20 and 21 of a cylinder are attached to the upper mold 14 and the lower mold 16, respectively. I have. A driving source (not shown) causes the piston rods 20 and 21 of the cylinder to advance and retreat, so that the upper mold 14 and the lower mold 16 move.
[0025]
As shown in FIG. 2, the upper mold 14 has an arc shape in the longitudinal direction and a rectangular cross section perpendicular to the longitudinal direction. The center of the lower surface of the upper mold 14 is a substantially semi-cylindrical concave curved surface 14A extending in the longitudinal direction. The wood material 10 is arranged in the concave curved surface 14A at the time of compression processing. A packing groove 15 is provided around the joint surface 14B surrounding the concave curved surface 14A to surround the periphery of the concave curved surface 14A.
[0026]
Below the upper mold 14, a lower mold 16 is provided. The lower mold 16 has an arc shape in the longitudinal direction corresponding to the upper mold 14, and has a rectangular cross section perpendicular to the longitudinal direction. On the upper surface of the lower mold 16, a substantially semi-cylindrical concave curved surface 16A extending in the longitudinal direction corresponding to the concave curved surface 14A of the upper mold 14 is formed. The wooden material 11 can be arranged in the concave curved surface 16A. An elastic packing 18 having a predetermined thickness is attached to the joint surface 16B surrounding the concave curved surface 16A to surround the concave curved surface 16A. The packing 18 is formed corresponding to the packing groove 15 of the upper mold 14. Thus, when the upper mold 14 and the lower mold 16 are closed, the packing 18 is pressed against the packing groove 15 of the upper mold 14, and airtightness is secured by close contact (compression).
[0027]
Here, a method of compressing the wooden materials 10 and 11 will be described with reference to FIG. FIG. 1 shows a state in which the upper and lower dies 14 and 16 compress the wooden materials 10 and 11.
[0028]
First, the lid (not shown) of the pressure vessel 13 is opened, and the wooden materials 10 and 11 are carried into the pressure vessel 13. Here, the wood materials 10 and 11 used are not softened. A metal core 22 is arranged between the pair of wooden materials 10 and 11, and the wooden materials 10 and 11 on which the metal cores 22 are arranged are positioned and placed on the concave curved surface 16 </ b> A of the lower mold 16.
[0029]
Next, after closing the pressure vessel 13 by closing the lid of the pressure vessel 13, the inside of the pressure vessel 13 is heated to a high temperature (for example, 120 ° C. to 220 ° C. (die heating temperature)) by a heater (not shown), Heat 11 At this time, in the present embodiment, it is preferable that the inside of the pressure vessel 13 is not replenished with water.
[0030]
In this state, the outer peripheral surfaces of the wooden materials 10 and 11 are pressed from above and below by the upper mold 14 and the lower mold 16, and the entire wooden materials 10 and 11 are compressed, thereby performing compression molding. FIG. 1 shows this state. After that, at a high temperature, the pressed state of the wooden materials 10 and 11 is maintained for a predetermined time (for example, about 1 to 30 minutes). At this time, the upper mold 14 and the lower mold 16 are closely adhered by the packing 18 and the packing groove 15. For this reason, the moisture originally contained in the wooden materials 10 and 11 is retained, and this moisture becomes steam in the wooden materials 10 and 11 to relieve the stress inside the wooden materials 10 and 11 and to be deformed by compression molding. Is fixed.
[0031]
After the shapes of the wooden materials 10 and 11 are fixed, the temperature in the pressure vessel 13 is lowered, the lid (not shown) of the pressure vessel 13 is opened, and the upper mold 14 and the lower mold 16 are opened, The materials 10 and 11 are carried out of the pressure vessel 13 to finish the processing.
[0032]
As described above, in the present embodiment, when the wooden materials 10 and 11 are compressed and deformed by the upper and lower molds 14 and 16, the packing 18 and the packing groove 15 are in close contact with each other, and the upper and lower molds 14 and 16 are sealed. Water evaporation from the wooden materials 10 and 11 is prevented. In this way, the adhesion between the packing 18 and the packing groove 15 prevents water evaporation and keeps the wooden materials 10 and 11 at a certain level of moisture, whereby the temperature inside the wooden materials 10 and 11 rises quickly and softens. And the processing time is shortened. In addition, since the initial moisture is retained during the processing, the stress due to the processing can be reduced, so that the shape can be stabilized.
[0033]
Next, a second embodiment of a wooden material processing apparatus and a wooden material processing method according to the present invention will be described with reference to FIG. In the first embodiment, the case where moisture is prevented by the close contact between the packing 18 and the packing groove 15 has been described. However, in the second embodiment, the sealing material is applied to the wooden surfaces 10B and 11B of the wooden materials 10 and 11. This is the case where water evaporation is prevented by being provided. Note that the configuration of the wooden material processing apparatus and the wooden material processing method according to the second embodiment is characterized in that a sealing material is provided on the wooden cut surfaces 10B and 11B of the wooden materials 10 and 11. Since the configuration is almost the same as that of the first embodiment, the same reference numerals are given and the description is omitted.
[0034]
As shown in FIG. 4, the wooden surfaces 10B and 11B of the wooden materials 10 and 11 are sealed with an epoxy resin-based adhesive or the like as a sealing material. Here, the kiguchi faces 10B and 11B are cut faces obtained by cutting the trunk. On this kiguchi face 10B, conduits which are responsible for conducting moisture and are arranged substantially parallel to the longitudinal direction of the trunk cross in the moisture conducting direction. Have been disconnected. For this reason, moisture easily enters and exits through the conduits on the cut surfaces 10B and 11B. In this way, the wooden surfaces 10B and 11B, where water is particularly likely to flow in and out of the wooden materials 10 and 11, are hardened with an adhesive such as an epoxy resin and sealed, so that moisture from the wooden materials 10 and 11 during compression processing is evaporated. Are effectively blocked.
[0035]
In the case where the cut surfaces 10B and 11B are sealed and shaped, even if other processing means such as a bending device are applied in addition to the compression mold, the water inside the wood materials 10 and 11 is used. The degree of freedom of processing is great. Further, after the shape is deformed, the adhesive such as an epoxy resin system fixed to the wooden surfaces 10B and 11B of the wooden materials 10 and 11 may be cut off.
[0036]
In the above-described embodiment, the case where the wooden member of the steering wheel is formed is specifically described as an example. However, according to the present invention described in claims 1 to 3 and 5, for example, the knob of the shift lever is formed. The present invention can be applied to the case of molding a wooden automobile part such as a knob of a lever combination switch, a panel of a window regulator, and the like, but is not limited thereto.
[0037]
Further, in the first embodiment, the case where the mold is sealed using the packing and the packing groove is specifically described as an example. However, for example, the mold is sealed using a closing unit such as an adhesive member. However, the present invention is not limited to this.
[0038]
In the first embodiment, the wooden material is compression molded immediately after being placed on the upper and lower molds. However, the wooden material is heated for a predetermined time (for example, about 1 minute to 10 minutes) to soften the wooden material. After that, compression molding may be performed.
[0039]
Furthermore, in the above-described second embodiment, a specific example has been described using an example in which an adhesive such as an epoxy resin is used as a sealant. However, for example, any sealant that prevents evaporation of water, such as silicon or urethane, may be used. Various sealing materials such as tape, mist, clay, etc., such as paper, can be applied without being limited to liquid. Further, in the second embodiment, the sealing material is provided only on the cut edge surface, but the present invention is not limited to this, and the sealing material is provided on the cut edge surface and other surfaces (plate grain, straight grain). May be.
[0040]
【The invention's effect】
As described above, according to the wooden material processing apparatus and the wooden material processing method of the present invention, there is an excellent effect that the processing time is short and the shape of the processed wooden material can be stabilized.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a wooden material compression processing apparatus and a wooden material according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing upper and lower molds and a wooden material according to the first embodiment of the present invention.
FIG. 3 is a plan view showing a steering wheel according to the first embodiment of the present invention.
FIG. 4 is a perspective view showing a wooden material according to a second embodiment of the present invention.
[Explanation of symbols]
10 Wood material 10B Wood edge 11 Wood material 11B Wood edge 12 Wood compression machine (wood processing machine)
14 Upper mold (mold (deformation means))
15 Packing groove (closing means)
16 Lower mold (mold (deformation means))
18 Packing (closing means)
30 wooden materials (wood materials for wheel rings)

Claims (6)

Deformation means for at least compressing or bending the wooden material;
When the wooden material is deformed by the deforming means, closing means for preventing water evaporation from the wooden material,
Has,
An apparatus for processing wood materials, which is used to mold automotive parts. The wooden material processing apparatus according to claim 1, wherein the closing means seals a mold serving as the deforming means. 2. The wooden material processing apparatus according to claim 1, wherein said closing means arranges a sealing material on a wooden mouth of the wooden material. The wooden material processing according to any one of claims 1 to 3, wherein the deforming means compresses or bends the wooden material at least to form a wooden member for a wheel ring of a steering wheel. apparatus. A method for processing a wooden material, wherein the closing means prevents water evaporation from the wooden material, and the deforming means compresses or bends the wooden material at least to form an automobile part. The method for processing a wooden material according to claim 5, wherein the wooden material is at least compressed or bent and deformed by a molding tool as the deforming means to form a wooden member for a wheel ring of a steering wheel.

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