JPH0531704A - Method for manufacture of material for wooden finishing material - Google Patents

Abstract

PURPOSE:To provide a manufacturing method which can lower the manufacturing cost of a material for wooden finishing material used for manufacture of wood products such as furnishings, fittings, etc. CONSTITUTION:After manufacturing veneer plywood 3 by using a plurality of veneers 1 which permit presence of an appropriate size defect 2, the veneer plywood 3 is formed into a plurality of optional size blocks 4. Then, a part 4b in which the defect 2 of a specific size or over exists on a required outer surface of each block 4 is cut off and besides, remaining parts 4a are successively connected to each other longitudinally. Further, since the constitution in which the part is cut to a required length to manufacture a material 5 for wooden finishing material is taken, the purpose of this method can be satisfied at low raw material cost and low manufacturing cost and a fancy veneer for concealing defects of the block comes to be also unnecessitated. Therefore, there is generally a merit in which the manufacturing cost for wooden finishing material can be made lower in comparison with any conventional manufacturing method of this kind.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a wooden working material (hereinafter simply referred to as a material) used for manufacturing wooden products such as furniture and fittings.

[0002]

2. Description of the Related Art Solid sawn timber has been often used as the above-mentioned material, but in recent years, from the viewpoint of reduction of high quality raw wood, ease of chemical treatment, stability of dimensional accuracy, etc. There is a tendency that the number of cases in which a veneer veneer (hereinafter, simply referred to as veneer) is laminated and bonded to a plurality of blocks having arbitrary sizes and used in place of sawn wood is gradually increased.

[0003] In the conventional general manufacturing method, even if a single plate laminated material is manufactured with any size, defects such as knots, knot holes, and crucibles are almost always obtained so as to always obtain a defect-free material. A manufacturing method in which a veneer laminate is manufactured using only the best-grade veneer that does not have it, or a veneer laminate is manufactured using only veneers from which most of the defects have been removed in advance, and then sawed into multiple blocks. In addition, as a special manufacturing method, a veneer laminated material is manufactured by using a good-quality veneer with relatively few defects, and then the veneer laminated material is processed into a plurality of blocks, and further if necessary. Then, after finishing processing, regardless of whether or not there are actual defects, a thick good-quality cosmetic material sufficient to cover the defects is separately attached to the desired outer surface of the block so that the appearance of the defects can be dealt with. The manufacturing method is mentioned.

[0004]

However, in the former general production method, when only the best grade veneer is used,
Since the raw material cost is extremely high, and when using only a single plate from which most of the defects have been removed beforehand, the defect-free parts in the vicinity of the defects are removed together, and the material yield decreases, or The manufacturing cost will inevitably increase due to factors such as an excessive increase in the number of horizontal and / or vertical perforations of the removed veneer to a size equivalent to a veneer laminated material, resulting in high manufacturing costs. Similarly, even in the latter special manufacturing method, since the material cost of a thick good quality cosmetic material sufficient to cover up the drawbacks becomes expensive, there is also a problem that the manufacturing cost also becomes high, In the end, all of these conventional manufacturing methods had a problem of price inferiority when competing with sawn timber.

[0005]

The present invention was developed in order to solve the above-mentioned drawbacks of the conventional manufacturing method. Specifically, a plurality of veneers that allow the existence of defects of appropriate size are used. After manufacturing the veneer laminated material with, the veneer laminated material is molded into a plurality of blocks of arbitrary size, and then a portion having a defect of a predetermined size or more on the desired outer surface of each block is cut off, A method for manufacturing a raw material is proposed, which is characterized in that the remaining portions are successively joined in the longitudinal direction and further cut into a desired length.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below along with an example of the embodiment illustrated in the drawings.

As shown in FIG. 1, the method for manufacturing a raw material according to the present invention comprises manufacturing a single-plate laminated material 3 using a plurality of single-plates 1 each of which is allowed to have a defect 2 of an appropriate size. The veneer laminated material 3 is molded into a plurality of blocks 4 of arbitrary size, and then a portion 4b where a defect 2 of a predetermined size or more is present is cut off on a desired outer surface of each block 4 and the remaining portion 4a is cut off. The material 5 is manufactured by successively joining the materials in the longitudinal direction and further cutting them into desired lengths.

Usually, there are few wooden products whose four peripheral surfaces of the material are directly exposed to the outside, and if the defect is small, it can be used without any problem. Therefore, the desired outer surface of the block has a defect of a predetermined size or more. Although the structure of cutting the part is adopted, it is natural that it is desirable to reduce the frequency of cutting the part having a defect as much as possible even in the present invention. It is preferable to use a veneer positioned in a layer that has as few defects as possible,
Even for a single plate located in the intermediate layer, it is preferable to use it after removing excessively large defects (for example, defects significantly larger than the assumed minimum width of the block) in advance.

Further, the molding of the block in the present invention includes both a case of simply sawing the lumber and a case of performing a roughing process as a pretreatment for the joining after the sawing, if necessary. It is appropriate to use the finger joint as in the embodiment for the joining in the longitudinal direction because it includes the form and because of the simplicity of joining, but in any case, the cutting of the portion where the defect exists The joining of the remaining portion and the remaining portion may be a state in which at least some of the steps proceed simultaneously.

Further, the veneer laminated material in the present invention is not limited to one in which the fiber directions of all veneers are aligned in the same direction, and the fiber directions of any suitable number of veneers can be changed to other directions. It also includes a single plate laminated in the direction orthogonal to the fiber direction.

[0011]

As described above, the method for producing a raw material according to the present invention is for producing a laminated veneer material by using a plurality of veneers which allow the existence of defects of appropriate size. The raw material cost is extremely low, and it is not necessary to cut away parts other than parts where defects of a predetermined size or more exist on the desired outer surface of the block, such as parts where defects exist inside the block. Compared with removing most of the defects of the plate, the material yield is improved, and the number of steps for joining blocks is increased at a rate smaller than the rate at which the steps for joining veneers are reduced. Generally, the manufacturing cost is low, and there is no need for a cosmetic material to hide defects, or if necessary, even if a cosmetic material is adhered to the desired external surface exclusively for makeup, the required thickness is required. Saga is a special manufacturing method Since it is thin and can be used, the material cost is low, and as a whole, there is an advantage that the manufacturing cost can be reduced compared to any conventional manufacturing method, and it is possible to supply a useful material that replaces the existing lumber. It will be transformed.

[Brief description of drawings]

FIG. 1 is a process explanatory view for explaining a method for manufacturing a material according to the present invention.

[Explanation of symbols]

 1 Veneer 2 Defects 3 Veneer laminate 4 Block 5 Material

Claims (1)

Claim: What is claimed is: 1. A veneer laminated material is manufactured by using a plurality of veneer veneers which allow the existence of defects of an appropriate size, and the veneer laminated material is then cut into a plurality of veneers of arbitrary size. Characterized by molding into blocks, and then cutting out a portion having a defect of a predetermined size or more on a desired outer surface of each block, successively joining the remaining portions in the longitudinal direction, and further cutting to a desired length And a method of manufacturing a wooden working material.