JPS63294713A - Production of column - Google Patents

Abstract

PURPOSE:To express a pattern on a column without impairing natural feeling or texture of wood, by fixing a caul having a protruding pattern to a trunk part of a standing tree and forcing the part having the protruding pattern to bite into the trunk part in enlarging the diameter by growth of the trunk part. CONSTITUTION:A caul 10 is formed from wood and the inner surface 18 thereof is formed into a curved surface and provided with protruding parts 16 of a letter or pattern prepared by reflecting the letter or pattern to be expressed from a mirror on the surface of a column. The caul 10 is brought into contact with the trunk of a standing tree 12 and fixed with wires 14. The growth of the part having the fixed caul 10 is inhibited therewith and the trunk grows into a shape along the protruding parts 16 on the inner surface of the caul 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of manufacturing a pillar, and more particularly to a method of manufacturing a pillar whose surface has letters or patterns.

(Prior art) Conventionally, a method for expressing characters and patterns on pillars, especially floor pillars, etc., is to finish wood into the shape of a pillar and then stamp the surface of the pillar with a branding iron to represent the specified characters or patterns. is being carried out.

(Problems to be Solved by the Invention) However, the above conventional pillar manufacturing method has the following problems.

Branding irons are stamped after felling and finishing the pillars, but the surface of the pillars is scorched to reveal the letters and patterns, which is unnatural and lacks beauty, and the letters and patterns lack the feel of the wood. There is a problem. Furthermore, there is also the problem that the branding iron cannot be effectively stamped on the uneven column surface, resulting in part of the letters and patterns being chipped.

Therefore, an object of the present invention is to provide a method of manufacturing a pillar that allows letters and patterns to be displayed on the surface of the pillar while preserving its natural beauty.

(Means for Solving the Problems) In order to solve the above problems, the present invention has the following configuration.

In other words, a board with predetermined letters or patterns protruding from its inner surface is fixed to the trunk of a standing tree, and when the trunk of the tree grows and expands in diameter, the letters of the board will be printed on the trunk. Alternatively, the character or pattern may be formed in the frame portion by cutting into a protruding or engraved portion of the pattern, and the standing tree may be cut down to form a pillar.

(effect) The operation will be explained with reference to FIG.

As shown in figure (a), if the plate 10 is fixed to the trunk of the tree 12 with a wire 14, the tree 12 will grow as the tree 12 grows.
The diameter of 2 becomes larger. At that time, the outer circumference of the standing tree 12 is
Since the diameter is expanded along the protruding part 16 of 0, a character or pattern represented by the protruding part 16 is formed on the outer periphery of the standing tree 12.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the structure of the backing plate used in the method of manufacturing a column of the present invention will be explained.

FIG. 2 shows a plan view of a backing plate used in the method of manufacturing a column according to the present invention.

The back plate 10 is made of wood, and the inner surface 18 is formed into a suitably curved surface.

Reference numeral 16 denotes a protruding portion, which is protruded from the inner surface 18 of the above-mentioned backing plate 10, on which are protruded a character or pattern that is a mirror image of the character or pattern desired to be displayed on the surface of the column. In the case of this embodiment, the mirrored character of "Kotobuki" is formed as shown in the figure. The top of the protrusion 16 is formed into a slightly pointed shape.

The preferred cross-sectional shape of the protrusion 16 is shown in FIGS. 3(a) to 3(a).
There are various shapes as shown in (f).

The cross-sectional shape of the protrusion 16 may be selected depending on the material (for example, softness, etc.) of the wood used as the pillar.

A method of using the contact plate 10 configured as described above will be explained with reference to FIG. 1.

First, as shown in FIG.
are brought into contact with each other, and the contact plate IO is firmly fixed with the wire 14.

Thereafter, if the plate 10 is fixed to the tree 12 for a suitable period of time, the tree 12 will grow and its trunk will become thicker, as shown in FIG. However, the growth of the part where the plate 10 is fixed is the plate 1.
0, the trunk grows into a shape along the protrusion 16 on the inner surface of the plate 10. Then, on the surface of the part of the tree 12 to which the backing plate 10 is fixed, the character "Kotobuki" along the mirrored character "Kotobuki" formed by the protrusion 16 is formed by the growth of the tree 12.

After an appropriate period of time has elapsed, the plate 10 is removed from the standing tree 12.

Next, the standing tree 12 is cut down and finished to the extent that the standing tree 12 can be used as a pillar.

In the pillar manufactured by the above-described manufacturing method, the character "Kotobuki" can be expressed by the unevenness of the pillar surface.

In the above-mentioned embodiment, the method of representing the character "Kobatsu" was described, but the protrusion 16 on the inner surface of the plate 10 may also represent a pattern, a family crest, or the like.

Also, depending on the wood, letters and patterns may not appear clearly, but by using such materials it is possible to create a natural feel.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments. For example, the material of the plate used may be a metal plate or a resin plate such as FRP instead of wood. Of course, many other modifications may be made without departing from the spirit of the invention.

(Effects of the Invention) When a pillar is manufactured using the pillar manufacturing method according to the present invention, it becomes possible to express letters and patterns on the surface of the pillar without impairing the natural feel and texture of the wood that is the material of the pillar. It is very effective.

[Brief explanation of drawings]

FIG. 1 is a plan view illustrating the present invention, FIG. 2 is a plan view of the plate, and FIG. 3 is a sectional view of the protrusion. lO...Plate, 12...Standing tree, 14...Wire, 16...Protrusion part, 18...
Inside.

Claims (1)

[Claims] 1. A board with predetermined letters or patterns protruding from its inner surface is fixed to the trunk of a standing tree, and when the trunk of the tree grows and expands in diameter, the letters on the board will be printed on the trunk. Alternatively, a method for manufacturing a pillar is characterized in that the character or pattern is formed on the trunk by cutting into a protruding or engraved part, and the standing tree is cut down to form a pillar.